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Finding the Fourth Proportional to 851,567, 1,175,108.82 and 488,735.50

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Solution

The fourth proportional to 851,567, 1,175,108.82 and 488,735.50 is: 674,424.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,567 : 1,175,108.82 = 488,735.50 : x
  2. Step 2: Convert to fraction form
    851,567/1,175,108.82 = 488,735.50/x
  3. Step 3: Cross multiply
    851,567x = 1,175,108.82 × 488,735.50
  4. Step 4: Simplify right side
    851,567x = 574,317,396,697.11
  5. Step 5: Solve for x
    x = 574,317,396,697.11/851,567
  6. Step 6: Final answer
    x = 674,424.20

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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.