Home / 827,591.10-1,242,001.05-329,312.70

Finding the Fourth Proportional to 827,591.10, 1,242,001.05 and 329,312.70

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Solution

The fourth proportional to 827,591.10, 1,242,001.05 and 329,312.70 is: 494,213.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,591.10 : 1,242,001.05 = 329,312.70 : x
  2. Step 2: Convert to fraction form
    827,591.10/1,242,001.05 = 329,312.70/x
  3. Step 3: Cross multiply
    827,591.10x = 1,242,001.05 × 329,312.70
  4. Step 4: Simplify right side
    827,591.10x = 409,006,719,178.34
  5. Step 5: Solve for x
    x = 409,006,719,178.34/827,591.10
  6. Step 6: Final answer
    x = 494,213.53

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.