Home / 680,040.75-1,020,024.22-206,689.21

Finding the Fourth Proportional to 680,040.75, 1,020,024.22 and 206,689.21

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Solution

The fourth proportional to 680,040.75, 1,020,024.22 and 206,689.21 is: 310,022.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,040.75 : 1,020,024.22 = 206,689.21 : x
  2. Step 2: Convert to fraction form
    680,040.75/1,020,024.22 = 206,689.21/x
  3. Step 3: Cross multiply
    680,040.75x = 1,020,024.22 × 206,689.21
  4. Step 4: Simplify right side
    680,040.75x = 210,828,000,212.67
  5. Step 5: Solve for x
    x = 210,828,000,212.67/680,040.75
  6. Step 6: Final answer
    x = 310,022.60

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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.