Home / 712,113.22-982,716.15-389,823.52

Finding the Fourth Proportional to 712,113.22, 982,716.15 and 389,823.52

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Solution

The fourth proportional to 712,113.22, 982,716.15 and 389,823.52 is: 537,956.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,113.22 : 982,716.15 = 389,823.52 : x
  2. Step 2: Convert to fraction form
    712,113.22/982,716.15 = 389,823.52/x
  3. Step 3: Cross multiply
    712,113.22x = 982,716.15 × 389,823.52
  4. Step 4: Simplify right side
    712,113.22x = 383,085,868,753.85
  5. Step 5: Solve for x
    x = 383,085,868,753.85/712,113.22
  6. Step 6: Final answer
    x = 537,956.41

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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.