Home / 891,161.80-1,229,881.04-488,831.56

Finding the Fourth Proportional to 891,161.80, 1,229,881.04 and 488,831.56

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Solution

The fourth proportional to 891,161.80, 1,229,881.04 and 488,831.56 is: 674,630.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,161.80 : 1,229,881.04 = 488,831.56 : x
  2. Step 2: Convert to fraction form
    891,161.80/1,229,881.04 = 488,831.56/x
  3. Step 3: Cross multiply
    891,161.80x = 1,229,881.04 × 488,831.56
  4. Step 4: Simplify right side
    891,161.80x = 601,204,667,397.62
  5. Step 5: Solve for x
    x = 601,204,667,397.62/891,161.80
  6. Step 6: Final answer
    x = 674,630.20

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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.