Home / 686,992.15-948,030.87-396,593.92

Finding the Fourth Proportional to 686,992.15, 948,030.87 and 396,593.92

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Solution

The fourth proportional to 686,992.15, 948,030.87 and 396,593.92 is: 547,289.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,992.15 : 948,030.87 = 396,593.92 : x
  2. Step 2: Convert to fraction form
    686,992.15/948,030.87 = 396,593.92/x
  3. Step 3: Cross multiply
    686,992.15x = 948,030.87 × 396,593.92
  4. Step 4: Simplify right side
    686,992.15x = 375,983,279,014.31
  5. Step 5: Solve for x
    x = 375,983,279,014.31/686,992.15
  6. Step 6: Final answer
    x = 547,289.05

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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.