Home / 748,997.28-1,123,329.60-216,401.76

Finding the Fourth Proportional to 748,997.28, 1,123,329.60 and 216,401.76

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Solution

The fourth proportional to 748,997.28, 1,123,329.60 and 216,401.76 is: 324,554.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,997.28 : 1,123,329.60 = 216,401.76 : x
  2. Step 2: Convert to fraction form
    748,997.28/1,123,329.60 = 216,401.76/x
  3. Step 3: Cross multiply
    748,997.28x = 1,123,329.60 × 216,401.76
  4. Step 4: Simplify right side
    748,997.28x = 243,090,502,500.10
  5. Step 5: Solve for x
    x = 243,090,502,500.10/748,997.28
  6. Step 6: Final answer
    x = 324,554.59

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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.