Home / 1,271,118-1,906,676.40-324,488.40

Finding the Fourth Proportional to 1,271,118, 1,906,676.40 and 324,488.40

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Solution

The fourth proportional to 1,271,118, 1,906,676.40 and 324,488.40 is: 486,732.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,118 : 1,906,676.40 = 324,488.40 : x
  2. Step 2: Convert to fraction form
    1,271,118/1,906,676.40 = 324,488.40/x
  3. Step 3: Cross multiply
    1,271,118x = 1,906,676.40 × 324,488.40
  4. Step 4: Simplify right side
    1,271,118x = 618,694,374,353.76
  5. Step 5: Solve for x
    x = 618,694,374,353.76/1,271,118
  6. Step 6: Final answer
    x = 486,732.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.