Home / 865,103.24-1,193,876.61-497,579.78

Finding the Fourth Proportional to 865,103.24, 1,193,876.61 and 497,579.78

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Solution

The fourth proportional to 865,103.24, 1,193,876.61 and 497,579.78 is: 686,679.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,103.24 : 1,193,876.61 = 497,579.78 : x
  2. Step 2: Convert to fraction form
    865,103.24/1,193,876.61 = 497,579.78/x
  3. Step 3: Cross multiply
    865,103.24x = 1,193,876.61 × 497,579.78
  4. Step 4: Simplify right side
    865,103.24x = 594,048,858,463.05
  5. Step 5: Solve for x
    x = 594,048,858,463.05/865,103.24
  6. Step 6: Final answer
    x = 686,679.73

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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.