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Finding the Fourth Proportional to 526,730.88, 726,886.26 and 285,017.73

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Solution

The fourth proportional to 526,730.88, 726,886.26 and 285,017.73 is: 393,323.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,730.88 : 726,886.26 = 285,017.73 : x
  2. Step 2: Convert to fraction form
    526,730.88/726,886.26 = 285,017.73/x
  3. Step 3: Cross multiply
    526,730.88x = 726,886.26 × 285,017.73
  4. Step 4: Simplify right side
    526,730.88x = 207,175,471,793.39
  5. Step 5: Solve for x
    x = 207,175,471,793.39/526,730.88
  6. Step 6: Final answer
    x = 393,323.19

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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.