Home / 851,052.74-1,276,966.58-318,615.21

Finding the Fourth Proportional to 851,052.74, 1,276,966.58 and 318,615.21

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Solution

The fourth proportional to 851,052.74, 1,276,966.58 and 318,615.21 is: 478,067.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,052.74 : 1,276,966.58 = 318,615.21 : x
  2. Step 2: Convert to fraction form
    851,052.74/1,276,966.58 = 318,615.21/x
  3. Step 3: Cross multiply
    851,052.74x = 1,276,966.58 × 318,615.21
  4. Step 4: Simplify right side
    851,052.74x = 406,860,973,456.61
  5. Step 5: Solve for x
    x = 406,860,973,456.61/851,052.74
  6. Step 6: Final answer
    x = 478,067.88

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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.