Home / 712,193.22-982,838.97-389,898.18

Finding the Fourth Proportional to 712,193.22, 982,838.97 and 389,898.18

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Solution

The fourth proportional to 712,193.22, 982,838.97 and 389,898.18 is: 538,066.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,193.22 : 982,838.97 = 389,898.18 : x
  2. Step 2: Convert to fraction form
    712,193.22/982,838.97 = 389,898.18/x
  3. Step 3: Cross multiply
    712,193.22x = 982,838.97 × 389,898.18
  4. Step 4: Simplify right side
    712,193.22x = 383,207,125,636.08
  5. Step 5: Solve for x
    x = 383,207,125,636.08/712,193.22
  6. Step 6: Final answer
    x = 538,066.24

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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.