Home / 820,451.18-1,132,279.38-457,945.79

Finding the Fourth Proportional to 820,451.18, 1,132,279.38 and 457,945.79

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Solution

The fourth proportional to 820,451.18, 1,132,279.38 and 457,945.79 is: 631,996.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,451.18 : 1,132,279.38 = 457,945.79 : x
  2. Step 2: Convert to fraction form
    820,451.18/1,132,279.38 = 457,945.79/x
  3. Step 3: Cross multiply
    820,451.18x = 1,132,279.38 × 457,945.79
  4. Step 4: Simplify right side
    820,451.18x = 518,522,575,174.81
  5. Step 5: Solve for x
    x = 518,522,575,174.81/820,451.18
  6. Step 6: Final answer
    x = 631,996.87

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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.