Home / 437,631.60-656,447.40-403,417.20

Finding the Fourth Proportional to 437,631.60, 656,447.40 and 403,417.20

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Solution

The fourth proportional to 437,631.60, 656,447.40 and 403,417.20 is: 605,125.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,631.60 : 656,447.40 = 403,417.20 : x
  2. Step 2: Convert to fraction form
    437,631.60/656,447.40 = 403,417.20/x
  3. Step 3: Cross multiply
    437,631.60x = 656,447.40 × 403,417.20
  4. Step 4: Simplify right side
    437,631.60x = 264,822,172,055.28
  5. Step 5: Solve for x
    x = 264,822,172,055.28/437,631.60
  6. Step 6: Final answer
    x = 605,125.80

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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.