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Finding the Fourth Proportional to 782,963.72, 1,080,471.56 and 460,694.69

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Solution

The fourth proportional to 782,963.72, 1,080,471.56 and 460,694.69 is: 635,747.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,963.72 : 1,080,471.56 = 460,694.69 : x
  2. Step 2: Convert to fraction form
    782,963.72/1,080,471.56 = 460,694.69/x
  3. Step 3: Cross multiply
    782,963.72x = 1,080,471.56 × 460,694.69
  4. Step 4: Simplify right side
    782,963.72x = 497,767,502,682.19
  5. Step 5: Solve for x
    x = 497,767,502,682.19/782,963.72
  6. Step 6: Final answer
    x = 635,747.86

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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.