Home / 727,382.34-1,003,818.78-405,092.43

Finding the Fourth Proportional to 727,382.34, 1,003,818.78 and 405,092.43

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Solution

The fourth proportional to 727,382.34, 1,003,818.78 and 405,092.43 is: 559,044.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,382.34 : 1,003,818.78 = 405,092.43 : x
  2. Step 2: Convert to fraction form
    727,382.34/1,003,818.78 = 405,092.43/x
  3. Step 3: Cross multiply
    727,382.34x = 1,003,818.78 × 405,092.43
  4. Step 4: Simplify right side
    727,382.34x = 406,639,388,869.84
  5. Step 5: Solve for x
    x = 406,639,388,869.84/727,382.34
  6. Step 6: Final answer
    x = 559,044.90

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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.