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Finding the Fourth Proportional to 527,069, 790,751.31 and 211,747.34

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Solution

The fourth proportional to 527,069, 790,751.31 and 211,747.34 is: 317,680.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,069 : 790,751.31 = 211,747.34 : x
  2. Step 2: Convert to fraction form
    527,069/790,751.31 = 211,747.34/x
  3. Step 3: Cross multiply
    527,069x = 790,751.31 × 211,747.34
  4. Step 4: Simplify right side
    527,069x = 167,439,486,494.02
  5. Step 5: Solve for x
    x = 167,439,486,494.02/527,069
  6. Step 6: Final answer
    x = 317,680.39

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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.