Home / 687,304.02-948,433.92-381,360.96

Finding the Fourth Proportional to 687,304.02, 948,433.92 and 381,360.96

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Solution

The fourth proportional to 687,304.02, 948,433.92 and 381,360.96 is: 526,252.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,304.02 : 948,433.92 = 381,360.96 : x
  2. Step 2: Convert to fraction form
    687,304.02/948,433.92 = 381,360.96/x
  3. Step 3: Cross multiply
    687,304.02x = 948,433.92 × 381,360.96
  4. Step 4: Simplify right side
    687,304.02x = 361,695,670,227.76
  5. Step 5: Solve for x
    x = 361,695,670,227.76/687,304.02
  6. Step 6: Final answer
    x = 526,252.81

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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.