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Finding the Fourth Proportional to 440,692, 608,154.96 and 239,488

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Solution

The fourth proportional to 440,692, 608,154.96 and 239,488 is: 330,493.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,692 : 608,154.96 = 239,488 : x
  2. Step 2: Convert to fraction form
    440,692/608,154.96 = 239,488/x
  3. Step 3: Cross multiply
    440,692x = 608,154.96 × 239,488
  4. Step 4: Simplify right side
    440,692x = 145,645,815,060.48
  5. Step 5: Solve for x
    x = 145,645,815,060.48/440,692
  6. Step 6: Final answer
    x = 330,493.44

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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.