Home / 749,237.70-1,123,856.55-300,027.90

Finding the Fourth Proportional to 749,237.70, 1,123,856.55 and 300,027.90

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Solution

The fourth proportional to 749,237.70, 1,123,856.55 and 300,027.90 is: 450,041.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,237.70 : 1,123,856.55 = 300,027.90 : x
  2. Step 2: Convert to fraction form
    749,237.70/1,123,856.55 = 300,027.90/x
  3. Step 3: Cross multiply
    749,237.70x = 1,123,856.55 × 300,027.90
  4. Step 4: Simplify right side
    749,237.70x = 337,188,320,597.75
  5. Step 5: Solve for x
    x = 337,188,320,597.75/749,237.70
  6. Step 6: Final answer
    x = 450,041.85

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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.