Home / 1,284,403.42-1,772,535.07-711,443.52

Finding the Fourth Proportional to 1,284,403.42, 1,772,535.07 and 711,443.52

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Solution

The fourth proportional to 1,284,403.42, 1,772,535.07 and 711,443.52 is: 981,824.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,403.42 : 1,772,535.07 = 711,443.52 : x
  2. Step 2: Convert to fraction form
    1,284,403.42/1,772,535.07 = 711,443.52/x
  3. Step 3: Cross multiply
    1,284,403.42x = 1,772,535.07 × 711,443.52
  4. Step 4: Simplify right side
    1,284,403.42x = 1,261,058,589,524.25
  5. Step 5: Solve for x
    x = 1,261,058,589,524.25/1,284,403.42
  6. Step 6: Final answer
    x = 981,824.38

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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.