Home / 712,046.70-982,625.92-389,777.38

Finding the Fourth Proportional to 712,046.70, 982,625.92 and 389,777.38

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Solution

The fourth proportional to 712,046.70, 982,625.92 and 389,777.38 is: 537,893.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,046.70 : 982,625.92 = 389,777.38 : x
  2. Step 2: Convert to fraction form
    712,046.70/982,625.92 = 389,777.38/x
  3. Step 3: Cross multiply
    712,046.70x = 982,625.92 × 389,777.38
  4. Step 4: Simplify right side
    712,046.70x = 383,005,356,617.69
  5. Step 5: Solve for x
    x = 383,005,356,617.69/712,046.70
  6. Step 6: Final answer
    x = 537,893.59

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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.