Home / 680,611.29-1,020,678.63-200,711.67

Finding the Fourth Proportional to 680,611.29, 1,020,678.63 and 200,711.67

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Solution

The fourth proportional to 680,611.29, 1,020,678.63 and 200,711.67 is: 300,997.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,611.29 : 1,020,678.63 = 200,711.67 : x
  2. Step 2: Convert to fraction form
    680,611.29/1,020,678.63 = 200,711.67/x
  3. Step 3: Cross multiply
    680,611.29x = 1,020,678.63 × 200,711.67
  4. Step 4: Simplify right side
    680,611.29x = 204,862,112,360.61
  5. Step 5: Solve for x
    x = 204,862,112,360.61/680,611.29
  6. Step 6: Final answer
    x = 300,997.23

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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.