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Finding the Fourth Proportional to 612,082.65, 918,123.98 and 332,146.65

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Solution

The fourth proportional to 612,082.65, 918,123.98 and 332,146.65 is: 498,219.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,082.65 : 918,123.98 = 332,146.65 : x
  2. Step 2: Convert to fraction form
    612,082.65/918,123.98 = 332,146.65/x
  3. Step 3: Cross multiply
    612,082.65x = 918,123.98 × 332,146.65
  4. Step 4: Simplify right side
    612,082.65x = 304,951,802,580.93
  5. Step 5: Solve for x
    x = 304,951,802,580.93/612,082.65
  6. Step 6: Final answer
    x = 498,219.98

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Similar ratio
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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.