Home / 1,284,371.25-1,772,432.33-711,448.53

Finding the Fourth Proportional to 1,284,371.25, 1,772,432.33 and 711,448.53

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Solution

The fourth proportional to 1,284,371.25, 1,772,432.33 and 711,448.53 is: 981,798.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,371.25 : 1,772,432.33 = 711,448.53 : x
  2. Step 2: Convert to fraction form
    1,284,371.25/1,772,432.33 = 711,448.53/x
  3. Step 3: Cross multiply
    1,284,371.25x = 1,772,432.33 × 711,448.53
  4. Step 4: Simplify right side
    1,284,371.25x = 1,260,994,372,145.73
  5. Step 5: Solve for x
    x = 1,260,994,372,145.73/1,284,371.25
  6. Step 6: Final answer
    x = 981,798.97

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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.