Home / 712,022.76-982,592.88-389,753.43

Finding the Fourth Proportional to 712,022.76, 982,592.88 and 389,753.43

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Solution

The fourth proportional to 712,022.76, 982,592.88 and 389,753.43 is: 537,860.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,022.76 : 982,592.88 = 389,753.43 : x
  2. Step 2: Convert to fraction form
    712,022.76/982,592.88 = 389,753.43/x
  3. Step 3: Cross multiply
    712,022.76x = 982,592.88 × 389,753.43
  4. Step 4: Simplify right side
    712,022.76x = 382,968,945,273.58
  5. Step 5: Solve for x
    x = 382,968,945,273.58/712,022.76
  6. Step 6: Final answer
    x = 537,860.54

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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.