Home / 437,514.30-656,530.65-318,887.10

Finding the Fourth Proportional to 437,514.30, 656,530.65 and 318,887.10

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Solution

The fourth proportional to 437,514.30, 656,530.65 and 318,887.10 is: 478,519.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,514.30 : 656,530.65 = 318,887.10 : x
  2. Step 2: Convert to fraction form
    437,514.30/656,530.65 = 318,887.10/x
  3. Step 3: Cross multiply
    437,514.30x = 656,530.65 × 318,887.10
  4. Step 4: Simplify right side
    437,514.30x = 209,359,155,039.62
  5. Step 5: Solve for x
    x = 209,359,155,039.62/437,514.30
  6. Step 6: Final answer
    x = 478,519.57

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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.