Home / 850,618.35-1,275,885.12-318,100.23

Finding the Fourth Proportional to 850,618.35, 1,275,885.12 and 318,100.23

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Solution

The fourth proportional to 850,618.35, 1,275,885.12 and 318,100.23 is: 477,134.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,618.35 : 1,275,885.12 = 318,100.23 : x
  2. Step 2: Convert to fraction form
    850,618.35/1,275,885.12 = 318,100.23/x
  3. Step 3: Cross multiply
    850,618.35x = 1,275,885.12 × 318,100.23
  4. Step 4: Simplify right side
    850,618.35x = 405,859,350,125.58
  5. Step 5: Solve for x
    x = 405,859,350,125.58/850,618.35
  6. Step 6: Final answer
    x = 477,134.49

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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.