Home / 668,731.40-1,003,097.10-440,408.60

Finding the Fourth Proportional to 668,731.40, 1,003,097.10 and 440,408.60

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Solution

The fourth proportional to 668,731.40, 1,003,097.10 and 440,408.60 is: 660,612.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,731.40 : 1,003,097.10 = 440,408.60 : x
  2. Step 2: Convert to fraction form
    668,731.40/1,003,097.10 = 440,408.60/x
  3. Step 3: Cross multiply
    668,731.40x = 1,003,097.10 × 440,408.60
  4. Step 4: Simplify right side
    668,731.40x = 441,772,589,475.06
  5. Step 5: Solve for x
    x = 441,772,589,475.06/668,731.40
  6. Step 6: Final answer
    x = 660,612.90

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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.