Home / 1,149,836.72-1,724,861.68-391,423.38

Finding the Fourth Proportional to 1,149,836.72, 1,724,861.68 and 391,423.38

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Solution

The fourth proportional to 1,149,836.72, 1,724,861.68 and 391,423.38 is: 587,171.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149,836.72 : 1,724,861.68 = 391,423.38 : x
  2. Step 2: Convert to fraction form
    1,149,836.72/1,724,861.68 = 391,423.38/x
  3. Step 3: Cross multiply
    1,149,836.72x = 1,724,861.68 × 391,423.38
  4. Step 4: Simplify right side
    1,149,836.72x = 675,151,188,818.08
  5. Step 5: Solve for x
    x = 675,151,188,818.08/1,149,836.72
  6. Step 6: Final answer
    x = 587,171.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.