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Finding the Fourth Proportional to 658,844.90, 988,267.35 and 304,550.90

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Solution

The fourth proportional to 658,844.90, 988,267.35 and 304,550.90 is: 456,826.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,844.90 : 988,267.35 = 304,550.90 : x
  2. Step 2: Convert to fraction form
    658,844.90/988,267.35 = 304,550.90/x
  3. Step 3: Cross multiply
    658,844.90x = 988,267.35 × 304,550.90
  4. Step 4: Simplify right side
    658,844.90x = 300,977,710,883.12
  5. Step 5: Solve for x
    x = 300,977,710,883.12/658,844.90
  6. Step 6: Final answer
    x = 456,826.35

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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.