Home / 680,750.40-1,021,125.60-325,680.96

Finding the Fourth Proportional to 680,750.40, 1,021,125.60 and 325,680.96

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Solution

The fourth proportional to 680,750.40, 1,021,125.60 and 325,680.96 is: 488,521.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,750.40 : 1,021,125.60 = 325,680.96 : x
  2. Step 2: Convert to fraction form
    680,750.40/1,021,125.60 = 325,680.96/x
  3. Step 3: Cross multiply
    680,750.40x = 1,021,125.60 × 325,680.96
  4. Step 4: Simplify right side
    680,750.40x = 332,561,165,688.58
  5. Step 5: Solve for x
    x = 332,561,165,688.58/680,750.40
  6. Step 6: Final answer
    x = 488,521.44

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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.