Home / 731,121.20-1,096,681.80-518,544.80

Finding the Fourth Proportional to 731,121.20, 1,096,681.80 and 518,544.80

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Solution

The fourth proportional to 731,121.20, 1,096,681.80 and 518,544.80 is: 777,817.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,121.20 : 1,096,681.80 = 518,544.80 : x
  2. Step 2: Convert to fraction form
    731,121.20/1,096,681.80 = 518,544.80/x
  3. Step 3: Cross multiply
    731,121.20x = 1,096,681.80 × 518,544.80
  4. Step 4: Simplify right side
    731,121.20x = 568,678,644,644.64
  5. Step 5: Solve for x
    x = 568,678,644,644.64/731,121.20
  6. Step 6: Final answer
    x = 777,817.20

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Half scale
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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.