Home / 749,355.20-1,123,750.68-243,783.92

Finding the Fourth Proportional to 749,355.20, 1,123,750.68 and 243,783.92

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Solution

The fourth proportional to 749,355.20, 1,123,750.68 and 243,783.92 is: 365,584.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,355.20 : 1,123,750.68 = 243,783.92 : x
  2. Step 2: Convert to fraction form
    749,355.20/1,123,750.68 = 243,783.92/x
  3. Step 3: Cross multiply
    749,355.20x = 1,123,750.68 × 243,783.92
  4. Step 4: Simplify right side
    749,355.20x = 273,952,345,873.07
  5. Step 5: Solve for x
    x = 273,952,345,873.07/749,355.20
  6. Step 6: Final answer
    x = 365,584.10

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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.