Home / 1,272,321.70-1,908,481.33-325,690.90

Finding the Fourth Proportional to 1,272,321.70, 1,908,481.33 and 325,690.90

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Solution

The fourth proportional to 1,272,321.70, 1,908,481.33 and 325,690.90 is: 488,536.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,321.70 : 1,908,481.33 = 325,690.90 : x
  2. Step 2: Convert to fraction form
    1,272,321.70/1,908,481.33 = 325,690.90/x
  3. Step 3: Cross multiply
    1,272,321.70x = 1,908,481.33 × 325,690.90
  4. Step 4: Simplify right side
    1,272,321.70x = 621,575,004,793.61
  5. Step 5: Solve for x
    x = 621,575,004,793.61/1,272,321.70
  6. Step 6: Final answer
    x = 488,536.04

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1.5x scale

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.