Home / 723,871.20-1,085,281.92-486,625.44

Finding the Fourth Proportional to 723,871.20, 1,085,281.92 and 486,625.44

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Solution

The fourth proportional to 723,871.20, 1,085,281.92 and 486,625.44 is: 729,585.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,871.20 : 1,085,281.92 = 486,625.44 : x
  2. Step 2: Convert to fraction form
    723,871.20/1,085,281.92 = 486,625.44/x
  3. Step 3: Cross multiply
    723,871.20x = 1,085,281.92 × 486,625.44
  4. Step 4: Simplify right side
    723,871.20x = 528,125,791,844.05
  5. Step 5: Solve for x
    x = 528,125,791,844.05/723,871.20
  6. Step 6: Final answer
    x = 729,585.31

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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.