Home / 723,943.88-999,023.48-397,255.90

Finding the Fourth Proportional to 723,943.88, 999,023.48 and 397,255.90

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Solution

The fourth proportional to 723,943.88, 999,023.48 and 397,255.90 is: 548,202.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,943.88 : 999,023.48 = 397,255.90 : x
  2. Step 2: Convert to fraction form
    723,943.88/999,023.48 = 397,255.90/x
  3. Step 3: Cross multiply
    723,943.88x = 999,023.48 × 397,255.90
  4. Step 4: Simplify right side
    723,943.88x = 396,867,971,668.53
  5. Step 5: Solve for x
    x = 396,867,971,668.53/723,943.88
  6. Step 6: Final answer
    x = 548,202.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.