Home / 1,007,472.10-1,511,208.15-259,518.10

Finding the Fourth Proportional to 1,007,472.10, 1,511,208.15 and 259,518.10

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Solution

The fourth proportional to 1,007,472.10, 1,511,208.15 and 259,518.10 is: 389,277.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,472.10 : 1,511,208.15 = 259,518.10 : x
  2. Step 2: Convert to fraction form
    1,007,472.10/1,511,208.15 = 259,518.10/x
  3. Step 3: Cross multiply
    1,007,472.10x = 1,511,208.15 × 259,518.10
  4. Step 4: Simplify right side
    1,007,472.10x = 392,185,867,792.52
  5. Step 5: Solve for x
    x = 392,185,867,792.52/1,007,472.10
  6. Step 6: Final answer
    x = 389,277.15

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.