Home / 723,081.61-997,850.90-396,394.04

Finding the Fourth Proportional to 723,081.61, 997,850.90 and 396,394.04

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Solution

The fourth proportional to 723,081.61, 997,850.90 and 396,394.04 is: 547,022.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,081.61 : 997,850.90 = 396,394.04 : x
  2. Step 2: Convert to fraction form
    723,081.61/997,850.90 = 396,394.04/x
  3. Step 3: Cross multiply
    723,081.61x = 997,850.90 × 396,394.04
  4. Step 4: Simplify right side
    723,081.61x = 395,542,149,568.64
  5. Step 5: Solve for x
    x = 395,542,149,568.64/723,081.61
  6. Step 6: Final answer
    x = 547,022.83

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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.