Home / 749,010.96-1,123,405.88-275,586.21

Finding the Fourth Proportional to 749,010.96, 1,123,405.88 and 275,586.21

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Solution

The fourth proportional to 749,010.96, 1,123,405.88 and 275,586.21 is: 413,338.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,010.96 : 1,123,405.88 = 275,586.21 : x
  2. Step 2: Convert to fraction form
    749,010.96/1,123,405.88 = 275,586.21/x
  3. Step 3: Cross multiply
    749,010.96x = 1,123,405.88 × 275,586.21
  4. Step 4: Simplify right side
    749,010.96x = 309,595,167,382.98
  5. Step 5: Solve for x
    x = 309,595,167,382.98/749,010.96
  6. Step 6: Final answer
    x = 413,338.63

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Half scale
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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.