Home / 1,126,500.92-1,689,722.18-378,546.92

Finding the Fourth Proportional to 1,126,500.92, 1,689,722.18 and 378,546.92

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Solution

The fourth proportional to 1,126,500.92, 1,689,722.18 and 378,546.92 is: 567,810.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,500.92 : 1,689,722.18 = 378,546.92 : x
  2. Step 2: Convert to fraction form
    1,126,500.92/1,689,722.18 = 378,546.92/x
  3. Step 3: Cross multiply
    1,126,500.92x = 1,689,722.18 × 378,546.92
  4. Step 4: Simplify right side
    1,126,500.92x = 639,639,126,894.69
  5. Step 5: Solve for x
    x = 639,639,126,894.69/1,126,500.92
  6. Step 6: Final answer
    x = 567,810.57

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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.