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Finding the Fourth Proportional to 539,373.20, 807,504.60 and 329,421.20

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Solution

The fourth proportional to 539,373.20, 807,504.60 and 329,421.20 is: 493,181.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,373.20 : 807,504.60 = 329,421.20 : x
  2. Step 2: Convert to fraction form
    539,373.20/807,504.60 = 329,421.20/x
  3. Step 3: Cross multiply
    539,373.20x = 807,504.60 × 329,421.20
  4. Step 4: Simplify right side
    539,373.20x = 266,009,134,337.52
  5. Step 5: Solve for x
    x = 266,009,134,337.52/539,373.20
  6. Step 6: Final answer
    x = 493,181.96

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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.