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Finding the Fourth Proportional to 539,364.20, 807,491.10 and 329,412.20

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Solution

The fourth proportional to 539,364.20, 807,491.10 and 329,412.20 is: 493,168.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,364.20 : 807,491.10 = 329,412.20 : x
  2. Step 2: Convert to fraction form
    539,364.20/807,491.10 = 329,412.20/x
  3. Step 3: Cross multiply
    539,364.20x = 807,491.10 × 329,412.20
  4. Step 4: Simplify right side
    539,364.20x = 265,997,419,731.42
  5. Step 5: Solve for x
    x = 265,997,419,731.42/539,364.20
  6. Step 6: Final answer
    x = 493,168.47

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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.