Home / 712,227.94-982,874.10-389,937.95

Finding the Fourth Proportional to 712,227.94, 982,874.10 and 389,937.95

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Solution

The fourth proportional to 712,227.94, 982,874.10 and 389,937.95 is: 538,114.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,227.94 : 982,874.10 = 389,937.95 : x
  2. Step 2: Convert to fraction form
    712,227.94/982,874.10 = 389,937.95/x
  3. Step 3: Cross multiply
    712,227.94x = 982,874.10 × 389,937.95
  4. Step 4: Simplify right side
    712,227.94x = 383,259,911,895.77
  5. Step 5: Solve for x
    x = 383,259,911,895.77/712,227.94
  6. Step 6: Final answer
    x = 538,114.12

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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.