Home / 867,149.13-1,196,665.80-485,249.73

Finding the Fourth Proportional to 867,149.13, 1,196,665.80 and 485,249.73

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Solution

The fourth proportional to 867,149.13, 1,196,665.80 and 485,249.73 is: 669,644.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,149.13 : 1,196,665.80 = 485,249.73 : x
  2. Step 2: Convert to fraction form
    867,149.13/1,196,665.80 = 485,249.73/x
  3. Step 3: Cross multiply
    867,149.13x = 1,196,665.80 × 485,249.73
  4. Step 4: Simplify right side
    867,149.13x = 580,681,756,350.23
  5. Step 5: Solve for x
    x = 580,681,756,350.23/867,149.13
  6. Step 6: Final answer
    x = 669,644.63

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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.