Home / 712,254.92-982,911.84-389,965.04

Finding the Fourth Proportional to 712,254.92, 982,911.84 and 389,965.04

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Solution

The fourth proportional to 712,254.92, 982,911.84 and 389,965.04 is: 538,151.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,254.92 : 982,911.84 = 389,965.04 : x
  2. Step 2: Convert to fraction form
    712,254.92/982,911.84 = 389,965.04/x
  3. Step 3: Cross multiply
    712,254.92x = 982,911.84 × 389,965.04
  4. Step 4: Simplify right side
    712,254.92x = 383,301,255,002.07
  5. Step 5: Solve for x
    x = 383,301,255,002.07/712,254.92
  6. Step 6: Final answer
    x = 538,151.78

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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.