Home / 749,270.80-1,123,517.40-275,712.40

Finding the Fourth Proportional to 749,270.80, 1,123,517.40 and 275,712.40

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Solution

The fourth proportional to 749,270.80, 1,123,517.40 and 275,712.40 is: 413,425.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,270.80 : 1,123,517.40 = 275,712.40 : x
  2. Step 2: Convert to fraction form
    749,270.80/1,123,517.40 = 275,712.40/x
  3. Step 3: Cross multiply
    749,270.80x = 1,123,517.40 × 275,712.40
  4. Step 4: Simplify right side
    749,270.80x = 309,767,678,795.76
  5. Step 5: Solve for x
    x = 309,767,678,795.76/749,270.80
  6. Step 6: Final answer
    x = 413,425.53

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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.