Home / 680,040.86-1,020,024.36-206,689.32

Finding the Fourth Proportional to 680,040.86, 1,020,024.36 and 206,689.32

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Solution

The fourth proportional to 680,040.86, 1,020,024.36 and 206,689.32 is: 310,022.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,040.86 : 1,020,024.36 = 206,689.32 : x
  2. Step 2: Convert to fraction form
    680,040.86/1,020,024.36 = 206,689.32/x
  3. Step 3: Cross multiply
    680,040.86x = 1,020,024.36 × 206,689.32
  4. Step 4: Simplify right side
    680,040.86x = 210,828,141,351.84
  5. Step 5: Solve for x
    x = 210,828,141,351.84/680,040.86
  6. Step 6: Final answer
    x = 310,022.76

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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.