Home / 668,717.40-1,003,076.10-440,394.60

Finding the Fourth Proportional to 668,717.40, 1,003,076.10 and 440,394.60

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Solution

The fourth proportional to 668,717.40, 1,003,076.10 and 440,394.60 is: 660,591.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,717.40 : 1,003,076.10 = 440,394.60 : x
  2. Step 2: Convert to fraction form
    668,717.40/1,003,076.10 = 440,394.60/x
  3. Step 3: Cross multiply
    668,717.40x = 1,003,076.10 × 440,394.60
  4. Step 4: Simplify right side
    668,717.40x = 441,749,297,829.06
  5. Step 5: Solve for x
    x = 441,749,297,829.06/668,717.40
  6. Step 6: Final answer
    x = 660,591.90

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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.