Home / 680,089.16-1,020,190.85-206,778.62

Finding the Fourth Proportional to 680,089.16, 1,020,190.85 and 206,778.62

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Solution

The fourth proportional to 680,089.16, 1,020,190.85 and 206,778.62 is: 310,185.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,089.16 : 1,020,190.85 = 206,778.62 : x
  2. Step 2: Convert to fraction form
    680,089.16/1,020,190.85 = 206,778.62/x
  3. Step 3: Cross multiply
    680,089.16x = 1,020,190.85 × 206,778.62
  4. Step 4: Simplify right side
    680,089.16x = 210,953,658,391.63
  5. Step 5: Solve for x
    x = 210,953,658,391.63/680,089.16
  6. Step 6: Final answer
    x = 310,185.30

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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.