Home / 1,015,781.43-1,401,789.78-580,256.45

Finding the Fourth Proportional to 1,015,781.43, 1,401,789.78 and 580,256.45

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Solution

The fourth proportional to 1,015,781.43, 1,401,789.78 and 580,256.45 is: 800,760.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,015,781.43 : 1,401,789.78 = 580,256.45 : x
  2. Step 2: Convert to fraction form
    1,015,781.43/1,401,789.78 = 580,256.45/x
  3. Step 3: Cross multiply
    1,015,781.43x = 1,401,789.78 × 580,256.45
  4. Step 4: Simplify right side
    1,015,781.43x = 813,397,559,636.84
  5. Step 5: Solve for x
    x = 813,397,559,636.84/1,015,781.43
  6. Step 6: Final answer
    x = 800,760.41

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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.