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Finding the Fourth Proportional to 591,780.80, 888,108.60 and 392,034.80

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Solution

The fourth proportional to 591,780.80, 888,108.60 and 392,034.80 is: 588,341.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,780.80 : 888,108.60 = 392,034.80 : x
  2. Step 2: Convert to fraction form
    591,780.80/888,108.60 = 392,034.80/x
  3. Step 3: Cross multiply
    591,780.80x = 888,108.60 × 392,034.80
  4. Step 4: Simplify right side
    591,780.80x = 348,169,477,379.28
  5. Step 5: Solve for x
    x = 348,169,477,379.28/591,780.80
  6. Step 6: Final answer
    x = 588,341.96

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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.