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Finding the Fourth Proportional to 487,745.40, 731,618.10 and 222,024.90

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Solution

The fourth proportional to 487,745.40, 731,618.10 and 222,024.90 is: 333,037.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,745.40 : 731,618.10 = 222,024.90 : x
  2. Step 2: Convert to fraction form
    487,745.40/731,618.10 = 222,024.90/x
  3. Step 3: Cross multiply
    487,745.40x = 731,618.10 × 222,024.90
  4. Step 4: Simplify right side
    487,745.40x = 162,437,435,490.69
  5. Step 5: Solve for x
    x = 162,437,435,490.69/487,745.40
  6. Step 6: Final answer
    x = 333,037.35

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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.