Home / 680,612.29-1,020,680.13-200,712.67

Finding the Fourth Proportional to 680,612.29, 1,020,680.13 and 200,712.67

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Solution

The fourth proportional to 680,612.29, 1,020,680.13 and 200,712.67 is: 300,998.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,612.29 : 1,020,680.13 = 200,712.67 : x
  2. Step 2: Convert to fraction form
    680,612.29/1,020,680.13 = 200,712.67/x
  3. Step 3: Cross multiply
    680,612.29x = 1,020,680.13 × 200,712.67
  4. Step 4: Simplify right side
    680,612.29x = 204,863,434,108.25
  5. Step 5: Solve for x
    x = 204,863,434,108.25/680,612.29
  6. Step 6: Final answer
    x = 300,998.73

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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.