Home / 712,072-982,769.28-406,149.04

Finding the Fourth Proportional to 712,072, 982,769.28 and 406,149.04

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Solution

The fourth proportional to 712,072, 982,769.28 and 406,149.04 is: 560,548.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,072 : 982,769.28 = 406,149.04 : x
  2. Step 2: Convert to fraction form
    712,072/982,769.28 = 406,149.04/x
  3. Step 3: Cross multiply
    712,072x = 982,769.28 × 406,149.04
  4. Step 4: Simplify right side
    712,072x = 399,150,799,613.49
  5. Step 5: Solve for x
    x = 399,150,799,613.49/712,072
  6. Step 6: Final answer
    x = 560,548.37

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1.5x scale

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.