Home / 820,243.11-1,131,945.46-476,158.76

Finding the Fourth Proportional to 820,243.11, 1,131,945.46 and 476,158.76

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Solution

The fourth proportional to 820,243.11, 1,131,945.46 and 476,158.76 is: 657,104.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,243.11 : 1,131,945.46 = 476,158.76 : x
  2. Step 2: Convert to fraction form
    820,243.11/1,131,945.46 = 476,158.76/x
  3. Step 3: Cross multiply
    820,243.11x = 1,131,945.46 × 476,158.76
  4. Step 4: Simplify right side
    820,243.11x = 538,985,746,694.29
  5. Step 5: Solve for x
    x = 538,985,746,694.29/820,243.11
  6. Step 6: Final answer
    x = 657,104.87

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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.