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Finding the Fourth Proportional to 782,763.86, 1,080,195.86 and 460,494.72

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Solution

The fourth proportional to 782,763.86, 1,080,195.86 and 460,494.72 is: 635,471.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,763.86 : 1,080,195.86 = 460,494.72 : x
  2. Step 2: Convert to fraction form
    782,763.86/1,080,195.86 = 460,494.72/x
  3. Step 3: Cross multiply
    782,763.86x = 1,080,195.86 × 460,494.72
  4. Step 4: Simplify right side
    782,763.86x = 497,424,491,894.64
  5. Step 5: Solve for x
    x = 497,424,491,894.64/782,763.86
  6. Step 6: Final answer
    x = 635,471.97

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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.