Home / 926,906.10-1,390,359.15-328,542.90

Finding the Fourth Proportional to 926,906.10, 1,390,359.15 and 328,542.90

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Solution

The fourth proportional to 926,906.10, 1,390,359.15 and 328,542.90 is: 492,814.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,906.10 : 1,390,359.15 = 328,542.90 : x
  2. Step 2: Convert to fraction form
    926,906.10/1,390,359.15 = 328,542.90/x
  3. Step 3: Cross multiply
    926,906.10x = 1,390,359.15 × 328,542.90
  4. Step 4: Simplify right side
    926,906.10x = 456,792,627,182.54
  5. Step 5: Solve for x
    x = 456,792,627,182.54/926,906.10
  6. Step 6: Final answer
    x = 492,814.35

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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.