Home / 908,436.82-1,253,671.20-521,323.06

Finding the Fourth Proportional to 908,436.82, 1,253,671.20 and 521,323.06

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Solution

The fourth proportional to 908,436.82, 1,253,671.20 and 521,323.06 is: 719,442.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,436.82 : 1,253,671.20 = 521,323.06 : x
  2. Step 2: Convert to fraction form
    908,436.82/1,253,671.20 = 521,323.06/x
  3. Step 3: Cross multiply
    908,436.82x = 1,253,671.20 × 521,323.06
  4. Step 4: Simplify right side
    908,436.82x = 653,567,706,217.87
  5. Step 5: Solve for x
    x = 653,567,706,217.87/908,436.82
  6. Step 6: Final answer
    x = 719,442.11

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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.