Home / 749,231.70-1,123,847.55-300,021.90

Finding the Fourth Proportional to 749,231.70, 1,123,847.55 and 300,021.90

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Solution

The fourth proportional to 749,231.70, 1,123,847.55 and 300,021.90 is: 450,032.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,231.70 : 1,123,847.55 = 300,021.90 : x
  2. Step 2: Convert to fraction form
    749,231.70/1,123,847.55 = 300,021.90/x
  3. Step 3: Cross multiply
    749,231.70x = 1,123,847.55 × 300,021.90
  4. Step 4: Simplify right side
    749,231.70x = 337,178,877,261.35
  5. Step 5: Solve for x
    x = 337,178,877,261.35/749,231.70
  6. Step 6: Final answer
    x = 450,032.85

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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.