Home / 680,405.62-1,020,570.90-207,054.04

Finding the Fourth Proportional to 680,405.62, 1,020,570.90 and 207,054.04

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Solution

The fourth proportional to 680,405.62, 1,020,570.90 and 207,054.04 is: 310,569.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,405.62 : 1,020,570.90 = 207,054.04 : x
  2. Step 2: Convert to fraction form
    680,405.62/1,020,570.90 = 207,054.04/x
  3. Step 3: Cross multiply
    680,405.62x = 1,020,570.90 × 207,054.04
  4. Step 4: Simplify right side
    680,405.62x = 211,313,327,951.44
  5. Step 5: Solve for x
    x = 211,313,327,951.44/680,405.62
  6. Step 6: Final answer
    x = 310,569.64

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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.