Home / 2,139,244.92-3,210,128.76-792,353.64

Finding the Fourth Proportional to 2,139,244.92, 3,210,128.76 and 792,353.64

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Solution

The fourth proportional to 2,139,244.92, 3,210,128.76 and 792,353.64 is: 1,188,997.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,139,244.92 : 3,210,128.76 = 792,353.64 : x
  2. Step 2: Convert to fraction form
    2,139,244.92/3,210,128.76 = 792,353.64/x
  3. Step 3: Cross multiply
    2,139,244.92x = 3,210,128.76 × 792,353.64
  4. Step 4: Simplify right side
    2,139,244.92x = 2,543,557,207,854.69
  5. Step 5: Solve for x
    x = 2,543,557,207,854.69/2,139,244.92
  6. Step 6: Final answer
    x = 1,188,997.66

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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.