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Finding the Fourth Proportional to 567,339.60, 782,933.40 and 312,691.44

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Solution

The fourth proportional to 567,339.60, 782,933.40 and 312,691.44 is: 431,516.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,339.60 : 782,933.40 = 312,691.44 : x
  2. Step 2: Convert to fraction form
    567,339.60/782,933.40 = 312,691.44/x
  3. Step 3: Cross multiply
    567,339.60x = 782,933.40 × 312,691.44
  4. Step 4: Simplify right side
    567,339.60x = 244,816,572,270.10
  5. Step 5: Solve for x
    x = 244,816,572,270.10/567,339.60
  6. Step 6: Final answer
    x = 431,516.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.