Home / 827,187.40-1,240,781.10-294,725.80

Finding the Fourth Proportional to 827,187.40, 1,240,781.10 and 294,725.80

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Solution

The fourth proportional to 827,187.40, 1,240,781.10 and 294,725.80 is: 442,088.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,187.40 : 1,240,781.10 = 294,725.80 : x
  2. Step 2: Convert to fraction form
    827,187.40/1,240,781.10 = 294,725.80/x
  3. Step 3: Cross multiply
    827,187.40x = 1,240,781.10 × 294,725.80
  4. Step 4: Simplify right side
    827,187.40x = 365,690,202,322.38
  5. Step 5: Solve for x
    x = 365,690,202,322.38/827,187.40
  6. Step 6: Final answer
    x = 442,088.70

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.