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Finding the Fourth Proportional to 526,638.66, 726,758.54 and 297,270.48

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Solution

The fourth proportional to 526,638.66, 726,758.54 and 297,270.48 is: 410,231.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,638.66 : 726,758.54 = 297,270.48 : x
  2. Step 2: Convert to fraction form
    526,638.66/726,758.54 = 297,270.48/x
  3. Step 3: Cross multiply
    526,638.66x = 726,758.54 × 297,270.48
  4. Step 4: Simplify right side
    526,638.66x = 216,043,863,932.50
  5. Step 5: Solve for x
    x = 216,043,863,932.50/526,638.66
  6. Step 6: Final answer
    x = 410,231.69

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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.