Home / 484,645.92-726,911.16-129,687.36

Finding the Fourth Proportional to 484,645.92, 726,911.16 and 129,687.36

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Solution

The fourth proportional to 484,645.92, 726,911.16 and 129,687.36 is: 194,515.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,645.92 : 726,911.16 = 129,687.36 : x
  2. Step 2: Convert to fraction form
    484,645.92/726,911.16 = 129,687.36/x
  3. Step 3: Cross multiply
    484,645.92x = 726,911.16 × 129,687.36
  4. Step 4: Simplify right side
    484,645.92x = 94,271,189,294.94
  5. Step 5: Solve for x
    x = 94,271,189,294.94/484,645.92
  6. Step 6: Final answer
    x = 194,515.59

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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.