Home / 724,715.73-1,086,644.30-219,123.45

Finding the Fourth Proportional to 724,715.73, 1,086,644.30 and 219,123.45

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Solution

The fourth proportional to 724,715.73, 1,086,644.30 and 219,123.45 is: 328,555.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,715.73 : 1,086,644.30 = 219,123.45 : x
  2. Step 2: Convert to fraction form
    724,715.73/1,086,644.30 = 219,123.45/x
  3. Step 3: Cross multiply
    724,715.73x = 1,086,644.30 × 219,123.45
  4. Step 4: Simplify right side
    724,715.73x = 238,109,246,843.22
  5. Step 5: Solve for x
    x = 238,109,246,843.22/724,715.73
  6. Step 6: Final answer
    x = 328,555.37

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Double scale
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1.5x scale

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.