Home / 820,543.32-1,132,248.24-457,987.32

Finding the Fourth Proportional to 820,543.32, 1,132,248.24 and 457,987.32

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Solution

The fourth proportional to 820,543.32, 1,132,248.24 and 457,987.32 is: 631,965.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,543.32 : 1,132,248.24 = 457,987.32 : x
  2. Step 2: Convert to fraction form
    820,543.32/1,132,248.24 = 457,987.32/x
  3. Step 3: Cross multiply
    820,543.32x = 1,132,248.24 × 457,987.32
  4. Step 4: Simplify right side
    820,543.32x = 518,555,337,012.32
  5. Step 5: Solve for x
    x = 518,555,337,012.32/820,543.32
  6. Step 6: Final answer
    x = 631,965.83

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Double scale
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Similar ratio
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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.