Home / 749,245.40-1,123,868.10-275,832.80

Finding the Fourth Proportional to 749,245.40, 1,123,868.10 and 275,832.80

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Solution

The fourth proportional to 749,245.40, 1,123,868.10 and 275,832.80 is: 413,749.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,245.40 : 1,123,868.10 = 275,832.80 : x
  2. Step 2: Convert to fraction form
    749,245.40/1,123,868.10 = 275,832.80/x
  3. Step 3: Cross multiply
    749,245.40x = 1,123,868.10 × 275,832.80
  4. Step 4: Simplify right side
    749,245.40x = 309,999,684,853.68
  5. Step 5: Solve for x
    x = 309,999,684,853.68/749,245.40
  6. Step 6: Final answer
    x = 413,749.20

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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.