Home / 718,617.20-991,441.26-460,636.38

Finding the Fourth Proportional to 718,617.20, 991,441.26 and 460,636.38

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Solution

The fourth proportional to 718,617.20, 991,441.26 and 460,636.38 is: 635,517.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,617.20 : 991,441.26 = 460,636.38 : x
  2. Step 2: Convert to fraction form
    718,617.20/991,441.26 = 460,636.38/x
  3. Step 3: Cross multiply
    718,617.20x = 991,441.26 × 460,636.38
  4. Step 4: Simplify right side
    718,617.20x = 456,693,912,989.04
  5. Step 5: Solve for x
    x = 456,693,912,989.04/718,617.20
  6. Step 6: Final answer
    x = 635,517.65

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Double scale
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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.