Home / 782,989.08-1,080,473.78-460,636.90

Finding the Fourth Proportional to 782,989.08, 1,080,473.78 and 460,636.90

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Solution

The fourth proportional to 782,989.08, 1,080,473.78 and 460,636.90 is: 635,648.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,989.08 : 1,080,473.78 = 460,636.90 : x
  2. Step 2: Convert to fraction form
    782,989.08/1,080,473.78 = 460,636.90/x
  3. Step 3: Cross multiply
    782,989.08x = 1,080,473.78 × 460,636.90
  4. Step 4: Simplify right side
    782,989.08x = 497,706,092,550.48
  5. Step 5: Solve for x
    x = 497,706,092,550.48/782,989.08
  6. Step 6: Final answer
    x = 635,648.83

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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.