Home / 1,284,375.76-1,772,438.56-711,453.04

Finding the Fourth Proportional to 1,284,375.76, 1,772,438.56 and 711,453.04

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Solution

The fourth proportional to 1,284,375.76, 1,772,438.56 and 711,453.04 is: 981,805.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,375.76 : 1,772,438.56 = 711,453.04 : x
  2. Step 2: Convert to fraction form
    1,284,375.76/1,772,438.56 = 711,453.04/x
  3. Step 3: Cross multiply
    1,284,375.76x = 1,772,438.56 × 711,453.04
  4. Step 4: Simplify right side
    1,284,375.76x = 1,261,006,801,725.22
  5. Step 5: Solve for x
    x = 1,261,006,801,725.22/1,284,375.76
  6. Step 6: Final answer
    x = 981,805.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.