Home / 668,051.90-1,002,077.85-439,729.10

Finding the Fourth Proportional to 668,051.90, 1,002,077.85 and 439,729.10

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Solution

The fourth proportional to 668,051.90, 1,002,077.85 and 439,729.10 is: 659,593.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,051.90 : 1,002,077.85 = 439,729.10 : x
  2. Step 2: Convert to fraction form
    668,051.90/1,002,077.85 = 439,729.10/x
  3. Step 3: Cross multiply
    668,051.90x = 1,002,077.85 × 439,729.10
  4. Step 4: Simplify right side
    668,051.90x = 440,642,791,110.44
  5. Step 5: Solve for x
    x = 440,642,791,110.44/668,051.90
  6. Step 6: Final answer
    x = 659,593.65

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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.