Home / 991,310.88-1,486,967.40-271,658.73

Finding the Fourth Proportional to 991,310.88, 1,486,967.40 and 271,658.73

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Solution

The fourth proportional to 991,310.88, 1,486,967.40 and 271,658.73 is: 407,488.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,310.88 : 1,486,967.40 = 271,658.73 : x
  2. Step 2: Convert to fraction form
    991,310.88/1,486,967.40 = 271,658.73/x
  3. Step 3: Cross multiply
    991,310.88x = 1,486,967.40 × 271,658.73
  4. Step 4: Simplify right side
    991,310.88x = 403,947,675,435.40
  5. Step 5: Solve for x
    x = 403,947,675,435.40/991,310.88
  6. Step 6: Final answer
    x = 407,488.39

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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.