Home / 1,288,364.78-1,778,204.40-744,523.40

Finding the Fourth Proportional to 1,288,364.78, 1,778,204.40 and 744,523.40

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Solution

The fourth proportional to 1,288,364.78, 1,778,204.40 and 744,523.40 is: 1,027,593.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,364.78 : 1,778,204.40 = 744,523.40 : x
  2. Step 2: Convert to fraction form
    1,288,364.78/1,778,204.40 = 744,523.40/x
  3. Step 3: Cross multiply
    1,288,364.78x = 1,778,204.40 × 744,523.40
  4. Step 4: Simplify right side
    1,288,364.78x = 1,323,914,785,782.96
  5. Step 5: Solve for x
    x = 1,323,914,785,782.96/1,288,364.78
  6. Step 6: Final answer
    x = 1,027,593.12

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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.