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Finding the Fourth Proportional to 793,264.56, 1,189,891.92 and 287,707.92

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Solution

The fourth proportional to 793,264.56, 1,189,891.92 and 287,707.92 is: 431,560.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    793,264.56 : 1,189,891.92 = 287,707.92 : x
  2. Step 2: Convert to fraction form
    793,264.56/1,189,891.92 = 287,707.92/x
  3. Step 3: Cross multiply
    793,264.56x = 1,189,891.92 × 287,707.92
  4. Step 4: Simplify right side
    793,264.56x = 342,341,329,328.01
  5. Step 5: Solve for x
    x = 342,341,329,328.01/793,264.56
  6. Step 6: Final answer
    x = 431,560.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.