Home / 723,403.22-998,204.67-396,630.23

Finding the Fourth Proportional to 723,403.22, 998,204.67 and 396,630.23

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Solution

The fourth proportional to 723,403.22, 998,204.67 and 396,630.23 is: 547,299.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,403.22 : 998,204.67 = 396,630.23 : x
  2. Step 2: Convert to fraction form
    723,403.22/998,204.67 = 396,630.23/x
  3. Step 3: Cross multiply
    723,403.22x = 998,204.67 × 396,630.23
  4. Step 4: Simplify right side
    723,403.22x = 395,918,150,344.69
  5. Step 5: Solve for x
    x = 395,918,150,344.69/723,403.22
  6. Step 6: Final answer
    x = 547,299.41

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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.