Home / 723,402.74-998,204.02-396,629.76

Finding the Fourth Proportional to 723,402.74, 998,204.02 and 396,629.76

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Solution

The fourth proportional to 723,402.74, 998,204.02 and 396,629.76 is: 547,298.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,402.74 : 998,204.02 = 396,629.76 : x
  2. Step 2: Convert to fraction form
    723,402.74/998,204.02 = 396,629.76/x
  3. Step 3: Cross multiply
    723,402.74x = 998,204.02 × 396,629.76
  4. Step 4: Simplify right side
    723,402.74x = 395,917,420,883.64
  5. Step 5: Solve for x
    x = 395,917,420,883.64/723,402.74
  6. Step 6: Final answer
    x = 547,298.76

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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.