Home / 749,113.70-1,123,670.55-300,049.70

Finding the Fourth Proportional to 749,113.70, 1,123,670.55 and 300,049.70

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Solution

The fourth proportional to 749,113.70, 1,123,670.55 and 300,049.70 is: 450,074.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,113.70 : 1,123,670.55 = 300,049.70 : x
  2. Step 2: Convert to fraction form
    749,113.70/1,123,670.55 = 300,049.70/x
  3. Step 3: Cross multiply
    749,113.70x = 1,123,670.55 × 300,049.70
  4. Step 4: Simplify right side
    749,113.70x = 337,157,011,426.34
  5. Step 5: Solve for x
    x = 337,157,011,426.34/749,113.70
  6. Step 6: Final answer
    x = 450,074.55

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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.