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Finding the Fourth Proportional to 723,187.44, 998,007.69 and 417,327.30

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Solution

The fourth proportional to 723,187.44, 998,007.69 and 417,327.30 is: 575,916.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,187.44 : 998,007.69 = 417,327.30 : x
  2. Step 2: Convert to fraction form
    723,187.44/998,007.69 = 417,327.30/x
  3. Step 3: Cross multiply
    723,187.44x = 998,007.69 × 417,327.30
  4. Step 4: Simplify right side
    723,187.44x = 416,495,856,211.91
  5. Step 5: Solve for x
    x = 416,495,856,211.91/723,187.44
  6. Step 6: Final answer
    x = 575,916.88

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1.5x scale

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.