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Finding the Fourth Proportional to 549,489.18, 824,515.23 and 261,626.59

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Solution

The fourth proportional to 549,489.18, 824,515.23 and 261,626.59 is: 392,573.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,489.18 : 824,515.23 = 261,626.59 : x
  2. Step 2: Convert to fraction form
    549,489.18/824,515.23 = 261,626.59/x
  3. Step 3: Cross multiply
    549,489.18x = 824,515.23 × 261,626.59
  4. Step 4: Simplify right side
    549,489.18x = 215,715,108,027.97
  5. Step 5: Solve for x
    x = 215,715,108,027.97/549,489.18
  6. Step 6: Final answer
    x = 392,573.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.