Home / 644,078.28-888,829.92-357,599.04

Finding the Fourth Proportional to 644,078.28, 888,829.92 and 357,599.04

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Solution

The fourth proportional to 644,078.28, 888,829.92 and 357,599.04 is: 493,487.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,078.28 : 888,829.92 = 357,599.04 : x
  2. Step 2: Convert to fraction form
    644,078.28/888,829.92 = 357,599.04/x
  3. Step 3: Cross multiply
    644,078.28x = 888,829.92 × 357,599.04
  4. Step 4: Simplify right side
    644,078.28x = 317,844,726,115.28
  5. Step 5: Solve for x
    x = 317,844,726,115.28/644,078.28
  6. Step 6: Final answer
    x = 493,487.73

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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.