Home / 680,642.10-1,020,725.14-200,742.61

Finding the Fourth Proportional to 680,642.10, 1,020,725.14 and 200,742.61

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Solution

The fourth proportional to 680,642.10, 1,020,725.14 and 200,742.61 is: 301,043.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,642.10 : 1,020,725.14 = 200,742.61 : x
  2. Step 2: Convert to fraction form
    680,642.10/1,020,725.14 = 200,742.61/x
  3. Step 3: Cross multiply
    680,642.10x = 1,020,725.14 × 200,742.61
  4. Step 4: Simplify right side
    680,642.10x = 204,903,028,696.22
  5. Step 5: Solve for x
    x = 204,903,028,696.22/680,642.10
  6. Step 6: Final answer
    x = 301,043.72

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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.