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Finding the Fourth Proportional to 569,432.20, 853,710.90 and 320,114.20

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Solution

The fourth proportional to 569,432.20, 853,710.90 and 320,114.20 is: 479,925.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,432.20 : 853,710.90 = 320,114.20 : x
  2. Step 2: Convert to fraction form
    569,432.20/853,710.90 = 320,114.20/x
  3. Step 3: Cross multiply
    569,432.20x = 853,710.90 × 320,114.20
  4. Step 4: Simplify right side
    569,432.20x = 273,284,981,784.78
  5. Step 5: Solve for x
    x = 273,284,981,784.78/569,432.20
  6. Step 6: Final answer
    x = 479,925.41

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1.5x scale

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.