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Finding the Fourth Proportional to 569,763.20, 853,944.96 and 319,920.32

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Solution

The fourth proportional to 569,763.20, 853,944.96 and 319,920.32 is: 479,487.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,763.20 : 853,944.96 = 319,920.32 : x
  2. Step 2: Convert to fraction form
    569,763.20/853,944.96 = 319,920.32/x
  3. Step 3: Cross multiply
    569,763.20x = 853,944.96 × 319,920.32
  4. Step 4: Simplify right side
    569,763.20x = 273,194,344,865.59
  5. Step 5: Solve for x
    x = 273,194,344,865.59/569,763.20
  6. Step 6: Final answer
    x = 479,487.52

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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.