Home / 680,636.66-1,021,071.62-207,233.78

Finding the Fourth Proportional to 680,636.66, 1,021,071.62 and 207,233.78

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Solution

The fourth proportional to 680,636.66, 1,021,071.62 and 207,233.78 is: 310,886.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,636.66 : 1,021,071.62 = 207,233.78 : x
  2. Step 2: Convert to fraction form
    680,636.66/1,021,071.62 = 207,233.78/x
  3. Step 3: Cross multiply
    680,636.66x = 1,021,071.62 × 207,233.78
  4. Step 4: Simplify right side
    680,636.66x = 211,600,526,876.05
  5. Step 5: Solve for x
    x = 211,600,526,876.05/680,636.66
  6. Step 6: Final answer
    x = 310,886.18

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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.