Home / 742,887.40-1,114,331.10-269,401.90

Finding the Fourth Proportional to 742,887.40, 1,114,331.10 and 269,401.90

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Solution

The fourth proportional to 742,887.40, 1,114,331.10 and 269,401.90 is: 404,102.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,887.40 : 1,114,331.10 = 269,401.90 : x
  2. Step 2: Convert to fraction form
    742,887.40/1,114,331.10 = 269,401.90/x
  3. Step 3: Cross multiply
    742,887.40x = 1,114,331.10 × 269,401.90
  4. Step 4: Simplify right side
    742,887.40x = 300,202,915,569.09
  5. Step 5: Solve for x
    x = 300,202,915,569.09/742,887.40
  6. Step 6: Final answer
    x = 404,102.85

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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.