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Finding the Fourth Proportional to 619,909.80, 929,089.80 and 264,508.80

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Solution

The fourth proportional to 619,909.80, 929,089.80 and 264,508.80 is: 396,432.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,909.80 : 929,089.80 = 264,508.80 : x
  2. Step 2: Convert to fraction form
    619,909.80/929,089.80 = 264,508.80/x
  3. Step 3: Cross multiply
    619,909.80x = 929,089.80 × 264,508.80
  4. Step 4: Simplify right side
    619,909.80x = 245,752,428,090.24
  5. Step 5: Solve for x
    x = 245,752,428,090.24/619,909.80
  6. Step 6: Final answer
    x = 396,432.56

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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.