Home / 712,231.28-982,875.96-385,544.56

Finding the Fourth Proportional to 712,231.28, 982,875.96 and 385,544.56

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Solution

The fourth proportional to 712,231.28, 982,875.96 and 385,544.56 is: 532,049.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,231.28 : 982,875.96 = 385,544.56 : x
  2. Step 2: Convert to fraction form
    712,231.28/982,875.96 = 385,544.56/x
  3. Step 3: Cross multiply
    712,231.28x = 982,875.96 × 385,544.56
  4. Step 4: Simplify right side
    712,231.28x = 378,942,479,532.78
  5. Step 5: Solve for x
    x = 378,942,479,532.78/712,231.28
  6. Step 6: Final answer
    x = 532,049.76

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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.