Home / 748,905.60-1,123,358.40-243,465.60

Finding the Fourth Proportional to 748,905.60, 1,123,358.40 and 243,465.60

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Solution

The fourth proportional to 748,905.60, 1,123,358.40 and 243,465.60 is: 365,198.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,905.60 : 1,123,358.40 = 243,465.60 : x
  2. Step 2: Convert to fraction form
    748,905.60/1,123,358.40 = 243,465.60/x
  3. Step 3: Cross multiply
    748,905.60x = 1,123,358.40 × 243,465.60
  4. Step 4: Simplify right side
    748,905.60x = 273,499,126,871.04
  5. Step 5: Solve for x
    x = 273,499,126,871.04/748,905.60
  6. Step 6: Final answer
    x = 365,198.40

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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.