Home / 667,712.40-1,001,568.60-401,335.80

Finding the Fourth Proportional to 667,712.40, 1,001,568.60 and 401,335.80

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Solution

The fourth proportional to 667,712.40, 1,001,568.60 and 401,335.80 is: 602,003.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,712.40 : 1,001,568.60 = 401,335.80 : x
  2. Step 2: Convert to fraction form
    667,712.40/1,001,568.60 = 401,335.80/x
  3. Step 3: Cross multiply
    667,712.40x = 1,001,568.60 × 401,335.80
  4. Step 4: Simplify right side
    667,712.40x = 401,965,335,335.88
  5. Step 5: Solve for x
    x = 401,965,335,335.88/667,712.40
  6. Step 6: Final answer
    x = 602,003.70

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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.