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Finding the Fourth Proportional to 453,082.93, 625,349.57 and 287,403.73

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Solution

The fourth proportional to 453,082.93, 625,349.57 and 287,403.73 is: 396,677.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,082.93 : 625,349.57 = 287,403.73 : x
  2. Step 2: Convert to fraction form
    453,082.93/625,349.57 = 287,403.73/x
  3. Step 3: Cross multiply
    453,082.93x = 625,349.57 × 287,403.73
  4. Step 4: Simplify right side
    453,082.93x = 179,727,795,971.50
  5. Step 5: Solve for x
    x = 179,727,795,971.50/453,082.93
  6. Step 6: Final answer
    x = 396,677.48

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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.