Home / 668,881.70-1,003,322.55-403,460.90

Finding the Fourth Proportional to 668,881.70, 1,003,322.55 and 403,460.90

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Solution

The fourth proportional to 668,881.70, 1,003,322.55 and 403,460.90 is: 605,191.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,881.70 : 1,003,322.55 = 403,460.90 : x
  2. Step 2: Convert to fraction form
    668,881.70/1,003,322.55 = 403,460.90/x
  3. Step 3: Cross multiply
    668,881.70x = 1,003,322.55 × 403,460.90
  4. Step 4: Simplify right side
    668,881.70x = 404,801,419,013.30
  5. Step 5: Solve for x
    x = 404,801,419,013.30/668,881.70
  6. Step 6: Final answer
    x = 605,191.35

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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.