Home / 851,572.02-1,275,912.08-513,903.12

Finding the Fourth Proportional to 851,572.02, 1,275,912.08 and 513,903.12

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Solution

The fourth proportional to 851,572.02, 1,275,912.08 and 513,903.12 is: 769,982.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,572.02 : 1,275,912.08 = 513,903.12 : x
  2. Step 2: Convert to fraction form
    851,572.02/1,275,912.08 = 513,903.12/x
  3. Step 3: Cross multiply
    851,572.02x = 1,275,912.08 × 513,903.12
  4. Step 4: Simplify right side
    851,572.02x = 655,695,198,757.69
  5. Step 5: Solve for x
    x = 655,695,198,757.69/851,572.02
  6. Step 6: Final answer
    x = 769,982.08

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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.