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Finding the Fourth Proportional to 646,779.24, 970,168.92 and 247,542.48

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Solution

The fourth proportional to 646,779.24, 970,168.92 and 247,542.48 is: 371,313.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,779.24 : 970,168.92 = 247,542.48 : x
  2. Step 2: Convert to fraction form
    646,779.24/970,168.92 = 247,542.48/x
  3. Step 3: Cross multiply
    646,779.24x = 970,168.92 × 247,542.48
  4. Step 4: Simplify right side
    646,779.24x = 240,158,020,475.72
  5. Step 5: Solve for x
    x = 240,158,020,475.72/646,779.24
  6. Step 6: Final answer
    x = 371,313.74

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Similar ratio
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1.5x scale

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.