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Finding the Fourth Proportional to 437,615.10, 656,422.65 and 403,400.70

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Solution

The fourth proportional to 437,615.10, 656,422.65 and 403,400.70 is: 605,101.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,615.10 : 656,422.65 = 403,400.70 : x
  2. Step 2: Convert to fraction form
    437,615.10/656,422.65 = 403,400.70/x
  3. Step 3: Cross multiply
    437,615.10x = 656,422.65 × 403,400.70
  4. Step 4: Simplify right side
    437,615.10x = 264,801,356,505.86
  5. Step 5: Solve for x
    x = 264,801,356,505.86/437,615.10
  6. Step 6: Final answer
    x = 605,101.05

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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.