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Finding the Fourth Proportional to 551,170.64, 826,748.64 and 266,886.61

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Solution

The fourth proportional to 551,170.64, 826,748.64 and 266,886.61 is: 400,326.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,170.64 : 826,748.64 = 266,886.61 : x
  2. Step 2: Convert to fraction form
    551,170.64/826,748.64 = 266,886.61/x
  3. Step 3: Cross multiply
    551,170.64x = 826,748.64 × 266,886.61
  4. Step 4: Simplify right side
    551,170.64x = 220,648,144,435.30
  5. Step 5: Solve for x
    x = 220,648,144,435.30/551,170.64
  6. Step 6: Final answer
    x = 400,326.37

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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.