Home / 915,851.20-1,373,136.80-541,681.60

Finding the Fourth Proportional to 915,851.20, 1,373,136.80 and 541,681.60

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Solution

The fourth proportional to 915,851.20, 1,373,136.80 and 541,681.60 is: 812,143.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,851.20 : 1,373,136.80 = 541,681.60 : x
  2. Step 2: Convert to fraction form
    915,851.20/1,373,136.80 = 541,681.60/x
  3. Step 3: Cross multiply
    915,851.20x = 1,373,136.80 × 541,681.60
  4. Step 4: Simplify right side
    915,851.20x = 743,802,938,842.88
  5. Step 5: Solve for x
    x = 743,802,938,842.88/915,851.20
  6. Step 6: Final answer
    x = 812,143.87

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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.