Home / 723,087.11-997,858.49-396,399.54

Finding the Fourth Proportional to 723,087.11, 997,858.49 and 396,399.54

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Solution

The fourth proportional to 723,087.11, 997,858.49 and 396,399.54 is: 547,030.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,087.11 : 997,858.49 = 396,399.54 : x
  2. Step 2: Convert to fraction form
    723,087.11/997,858.49 = 396,399.54/x
  3. Step 3: Cross multiply
    723,087.11x = 997,858.49 × 396,399.54
  4. Step 4: Simplify right side
    723,087.11x = 395,550,644,439.10
  5. Step 5: Solve for x
    x = 395,550,644,439.10/723,087.11
  6. Step 6: Final answer
    x = 547,030.42

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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.