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Finding the Fourth Proportional to 782,993.08, 1,080,479.30 and 460,640.90

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Solution

The fourth proportional to 782,993.08, 1,080,479.30 and 460,640.90 is: 635,654.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,993.08 : 1,080,479.30 = 460,640.90 : x
  2. Step 2: Convert to fraction form
    782,993.08/1,080,479.30 = 460,640.90/x
  3. Step 3: Cross multiply
    782,993.08x = 1,080,479.30 × 460,640.90
  4. Step 4: Simplify right side
    782,993.08x = 497,712,957,183.37
  5. Step 5: Solve for x
    x = 497,712,957,183.37/782,993.08
  6. Step 6: Final answer
    x = 635,654.35

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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.