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Finding the Fourth Proportional to 723,798.46, 998,187.87 and 451,891.18

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Solution

The fourth proportional to 723,798.46, 998,187.87 and 451,891.18 is: 623,201.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,798.46 : 998,187.87 = 451,891.18 : x
  2. Step 2: Convert to fraction form
    723,798.46/998,187.87 = 451,891.18/x
  3. Step 3: Cross multiply
    723,798.46x = 998,187.87 × 451,891.18
  4. Step 4: Simplify right side
    723,798.46x = 451,072,294,435.99
  5. Step 5: Solve for x
    x = 451,072,294,435.99/723,798.46
  6. Step 6: Final answer
    x = 623,201.51

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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.