Home / 862,972.80-1,294,459.20-485,059.20

Finding the Fourth Proportional to 862,972.80, 1,294,459.20 and 485,059.20

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Solution

The fourth proportional to 862,972.80, 1,294,459.20 and 485,059.20 is: 727,588.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,972.80 : 1,294,459.20 = 485,059.20 : x
  2. Step 2: Convert to fraction form
    862,972.80/1,294,459.20 = 485,059.20/x
  3. Step 3: Cross multiply
    862,972.80x = 1,294,459.20 × 485,059.20
  4. Step 4: Simplify right side
    862,972.80x = 627,889,343,984.64
  5. Step 5: Solve for x
    x = 627,889,343,984.64/862,972.80
  6. Step 6: Final answer
    x = 727,588.80

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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.