Home / 891,138.39-1,229,780.52-483,241.02

Finding the Fourth Proportional to 891,138.39, 1,229,780.52 and 483,241.02

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Solution

The fourth proportional to 891,138.39, 1,229,780.52 and 483,241.02 is: 666,877.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,138.39 : 1,229,780.52 = 483,241.02 : x
  2. Step 2: Convert to fraction form
    891,138.39/1,229,780.52 = 483,241.02/x
  3. Step 3: Cross multiply
    891,138.39x = 1,229,780.52 × 483,241.02
  4. Step 4: Simplify right side
    891,138.39x = 594,280,392,860.93
  5. Step 5: Solve for x
    x = 594,280,392,860.93/891,138.39
  6. Step 6: Final answer
    x = 666,877.78

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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.