Home / 1,270,769.28-1,753,692.16-690,017.12

Finding the Fourth Proportional to 1,270,769.28, 1,753,692.16 and 690,017.12

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Solution

The fourth proportional to 1,270,769.28, 1,753,692.16 and 690,017.12 is: 952,240.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,769.28 : 1,753,692.16 = 690,017.12 : x
  2. Step 2: Convert to fraction form
    1,270,769.28/1,753,692.16 = 690,017.12/x
  3. Step 3: Cross multiply
    1,270,769.28x = 1,753,692.16 × 690,017.12
  4. Step 4: Simplify right side
    1,270,769.28x = 1,210,077,613,609.78
  5. Step 5: Solve for x
    x = 1,210,077,613,609.78/1,270,769.28
  6. Step 6: Final answer
    x = 952,240.22

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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.