Home / 724,867.20-1,087,300.80-647,452.80

Finding the Fourth Proportional to 724,867.20, 1,087,300.80 and 647,452.80

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Solution

The fourth proportional to 724,867.20, 1,087,300.80 and 647,452.80 is: 971,179.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,867.20 : 1,087,300.80 = 647,452.80 : x
  2. Step 2: Convert to fraction form
    724,867.20/1,087,300.80 = 647,452.80/x
  3. Step 3: Cross multiply
    724,867.20x = 1,087,300.80 × 647,452.80
  4. Step 4: Simplify right side
    724,867.20x = 703,975,947,402.24
  5. Step 5: Solve for x
    x = 703,975,947,402.24/724,867.20
  6. Step 6: Final answer
    x = 971,179.20

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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.