Home / 1,210,523.70-1,815,785.55-738,131.70

Finding the Fourth Proportional to 1,210,523.70, 1,815,785.55 and 738,131.70

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Solution

The fourth proportional to 1,210,523.70, 1,815,785.55 and 738,131.70 is: 1,107,197.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,523.70 : 1,815,785.55 = 738,131.70 : x
  2. Step 2: Convert to fraction form
    1,210,523.70/1,815,785.55 = 738,131.70/x
  3. Step 3: Cross multiply
    1,210,523.70x = 1,815,785.55 × 738,131.70
  4. Step 4: Simplify right side
    1,210,523.70x = 1,340,288,874,856.94
  5. Step 5: Solve for x
    x = 1,340,288,874,856.94/1,210,523.70
  6. Step 6: Final answer
    x = 1,107,197.55

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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.