Home / 688,491.30-1,032,737.76-215,179.14

Finding the Fourth Proportional to 688,491.30, 1,032,737.76 and 215,179.14

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Solution

The fourth proportional to 688,491.30, 1,032,737.76 and 215,179.14 is: 322,768.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,491.30 : 1,032,737.76 = 215,179.14 : x
  2. Step 2: Convert to fraction form
    688,491.30/1,032,737.76 = 215,179.14/x
  3. Step 3: Cross multiply
    688,491.30x = 1,032,737.76 × 215,179.14
  4. Step 4: Simplify right side
    688,491.30x = 222,223,623,042.33
  5. Step 5: Solve for x
    x = 222,223,623,042.33/688,491.30
  6. Step 6: Final answer
    x = 322,768.96

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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.