Home / 729,034.31-1,006,115.70-406,751.38

Finding the Fourth Proportional to 729,034.31, 1,006,115.70 and 406,751.38

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Solution

The fourth proportional to 729,034.31, 1,006,115.70 and 406,751.38 is: 561,343.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,034.31 : 1,006,115.70 = 406,751.38 : x
  2. Step 2: Convert to fraction form
    729,034.31/1,006,115.70 = 406,751.38/x
  3. Step 3: Cross multiply
    729,034.31x = 1,006,115.70 × 406,751.38
  4. Step 4: Simplify right side
    729,034.31x = 409,238,946,899.38
  5. Step 5: Solve for x
    x = 409,238,946,899.38/729,034.31
  6. Step 6: Final answer
    x = 561,343.88

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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.