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Finding the Fourth Proportional to 579,957.33, 869,498.60 and 380,327.97

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Solution

The fourth proportional to 579,957.33, 869,498.60 and 380,327.97 is: 570,205.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,957.33 : 869,498.60 = 380,327.97 : x
  2. Step 2: Convert to fraction form
    579,957.33/869,498.60 = 380,327.97/x
  3. Step 3: Cross multiply
    579,957.33x = 869,498.60 × 380,327.97
  4. Step 4: Simplify right side
    579,957.33x = 330,694,635,554.20
  5. Step 5: Solve for x
    x = 330,694,635,554.20/579,957.33
  6. Step 6: Final answer
    x = 570,205.11

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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.