Home / 484,115.05-668,032-280,125.36

Finding the Fourth Proportional to 484,115.05, 668,032 and 280,125.36

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Solution

The fourth proportional to 484,115.05, 668,032 and 280,125.36 is: 386,545.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,115.05 : 668,032 = 280,125.36 : x
  2. Step 2: Convert to fraction form
    484,115.05/668,032 = 280,125.36/x
  3. Step 3: Cross multiply
    484,115.05x = 668,032 × 280,125.36
  4. Step 4: Simplify right side
    484,115.05x = 187,132,704,491.52
  5. Step 5: Solve for x
    x = 187,132,704,491.52/484,115.05
  6. Step 6: Final answer
    x = 386,545.93

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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.