Home / 1,284,480.32-1,772,560.66-711,508.48

Finding the Fourth Proportional to 1,284,480.32, 1,772,560.66 and 711,508.48

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Solution

The fourth proportional to 1,284,480.32, 1,772,560.66 and 711,508.48 is: 981,869.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,480.32 : 1,772,560.66 = 711,508.48 : x
  2. Step 2: Convert to fraction form
    1,284,480.32/1,772,560.66 = 711,508.48/x
  3. Step 3: Cross multiply
    1,284,480.32x = 1,772,560.66 × 711,508.48
  4. Step 4: Simplify right side
    1,284,480.32x = 1,261,191,940,904.40
  5. Step 5: Solve for x
    x = 1,261,191,940,904.40/1,284,480.32
  6. Step 6: Final answer
    x = 981,869.42

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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.