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Finding the Fourth Proportional to 487,449.60, 730,137.60 and 404,505.60

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Solution

The fourth proportional to 487,449.60, 730,137.60 and 404,505.60 is: 605,898.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,449.60 : 730,137.60 = 404,505.60 : x
  2. Step 2: Convert to fraction form
    487,449.60/730,137.60 = 404,505.60/x
  3. Step 3: Cross multiply
    487,449.60x = 730,137.60 × 404,505.60
  4. Step 4: Simplify right side
    487,449.60x = 295,344,747,970.56
  5. Step 5: Solve for x
    x = 295,344,747,970.56/487,449.60
  6. Step 6: Final answer
    x = 605,898.02

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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.