Home / 712,262.55-982,922.46-389,972.73

Finding the Fourth Proportional to 712,262.55, 982,922.46 and 389,972.73

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Solution

The fourth proportional to 712,262.55, 982,922.46 and 389,972.73 is: 538,162.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,262.55 : 982,922.46 = 389,972.73 : x
  2. Step 2: Convert to fraction form
    712,262.55/982,922.46 = 389,972.73/x
  3. Step 3: Cross multiply
    712,262.55x = 982,922.46 × 389,972.73
  4. Step 4: Simplify right side
    712,262.55x = 383,312,955,104.52
  5. Step 5: Solve for x
    x = 383,312,955,104.52/712,262.55
  6. Step 6: Final answer
    x = 538,162.44

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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.