Home / 726,247.40-1,089,371.10-488,301.80

Finding the Fourth Proportional to 726,247.40, 1,089,371.10 and 488,301.80

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Solution

The fourth proportional to 726,247.40, 1,089,371.10 and 488,301.80 is: 732,452.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,247.40 : 1,089,371.10 = 488,301.80 : x
  2. Step 2: Convert to fraction form
    726,247.40/1,089,371.10 = 488,301.80/x
  3. Step 3: Cross multiply
    726,247.40x = 1,089,371.10 × 488,301.80
  4. Step 4: Simplify right side
    726,247.40x = 531,941,868,997.98
  5. Step 5: Solve for x
    x = 531,941,868,997.98/726,247.40
  6. Step 6: Final answer
    x = 732,452.70

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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.