Home / 749,354.20-1,123,749.18-243,782.92

Finding the Fourth Proportional to 749,354.20, 1,123,749.18 and 243,782.92

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Solution

The fourth proportional to 749,354.20, 1,123,749.18 and 243,782.92 is: 365,582.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,354.20 : 1,123,749.18 = 243,782.92 : x
  2. Step 2: Convert to fraction form
    749,354.20/1,123,749.18 = 243,782.92/x
  3. Step 3: Cross multiply
    749,354.20x = 1,123,749.18 × 243,782.92
  4. Step 4: Simplify right side
    749,354.20x = 273,950,856,448.01
  5. Step 5: Solve for x
    x = 273,950,856,448.01/749,354.20
  6. Step 6: Final answer
    x = 365,582.60

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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.