Home / 698,768.73-964,335.03-392,941.35

Finding the Fourth Proportional to 698,768.73, 964,335.03 and 392,941.35

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Solution

The fourth proportional to 698,768.73, 964,335.03 and 392,941.35 is: 542,278.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,768.73 : 964,335.03 = 392,941.35 : x
  2. Step 2: Convert to fraction form
    698,768.73/964,335.03 = 392,941.35/x
  3. Step 3: Cross multiply
    698,768.73x = 964,335.03 × 392,941.35
  4. Step 4: Simplify right side
    698,768.73x = 378,927,108,540.49
  5. Step 5: Solve for x
    x = 378,927,108,540.49/698,768.73
  6. Step 6: Final answer
    x = 542,278.29

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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.