Home / 908,548.43-1,253,745.05-521,281.76

Finding the Fourth Proportional to 908,548.43, 1,253,745.05 and 521,281.76

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Solution

The fourth proportional to 908,548.43, 1,253,745.05 and 521,281.76 is: 719,339.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,548.43 : 1,253,745.05 = 521,281.76 : x
  2. Step 2: Convert to fraction form
    908,548.43/1,253,745.05 = 521,281.76/x
  3. Step 3: Cross multiply
    908,548.43x = 1,253,745.05 × 521,281.76
  4. Step 4: Simplify right side
    908,548.43x = 653,554,417,380.15
  5. Step 5: Solve for x
    x = 653,554,417,380.15/908,548.43
  6. Step 6: Final answer
    x = 719,339.11

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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.