Home / 1,270,977.75-1,753,942.50-690,195.87

Finding the Fourth Proportional to 1,270,977.75, 1,753,942.50 and 690,195.87

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Solution

The fourth proportional to 1,270,977.75, 1,753,942.50 and 690,195.87 is: 952,466.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,977.75 : 1,753,942.50 = 690,195.87 : x
  2. Step 2: Convert to fraction form
    1,270,977.75/1,753,942.50 = 690,195.87/x
  3. Step 3: Cross multiply
    1,270,977.75x = 1,753,942.50 × 690,195.87
  4. Step 4: Simplify right side
    1,270,977.75x = 1,210,563,869,717.48
  5. Step 5: Solve for x
    x = 1,210,563,869,717.48/1,270,977.75
  6. Step 6: Final answer
    x = 952,466.61

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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.