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Finding the Fourth Proportional to 555,445.13, 766,089.04 and 383,650.61

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Solution

The fourth proportional to 555,445.13, 766,089.04 and 383,650.61 is: 529,144.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,445.13 : 766,089.04 = 383,650.61 : x
  2. Step 2: Convert to fraction form
    555,445.13/766,089.04 = 383,650.61/x
  3. Step 3: Cross multiply
    555,445.13x = 766,089.04 × 383,650.61
  4. Step 4: Simplify right side
    555,445.13x = 293,910,522,720.74
  5. Step 5: Solve for x
    x = 293,910,522,720.74/555,445.13
  6. Step 6: Final answer
    x = 529,144.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.