Home / 812,727.18-1,121,551.15-445,201.37

Finding the Fourth Proportional to 812,727.18, 1,121,551.15 and 445,201.37

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Solution

The fourth proportional to 812,727.18, 1,121,551.15 and 445,201.37 is: 614,371.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,727.18 : 1,121,551.15 = 445,201.37 : x
  2. Step 2: Convert to fraction form
    812,727.18/1,121,551.15 = 445,201.37/x
  3. Step 3: Cross multiply
    812,727.18x = 1,121,551.15 × 445,201.37
  4. Step 4: Simplify right side
    812,727.18x = 499,316,108,505.08
  5. Step 5: Solve for x
    x = 499,316,108,505.08/812,727.18
  6. Step 6: Final answer
    x = 614,371.12

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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.