Home / 1,067,038.20-1,601,723.70-668,129.40

Finding the Fourth Proportional to 1,067,038.20, 1,601,723.70 and 668,129.40

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Solution

The fourth proportional to 1,067,038.20, 1,601,723.70 and 668,129.40 is: 1,002,924.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,067,038.20 : 1,601,723.70 = 668,129.40 : x
  2. Step 2: Convert to fraction form
    1,067,038.20/1,601,723.70 = 668,129.40/x
  3. Step 3: Cross multiply
    1,067,038.20x = 1,601,723.70 × 668,129.40
  4. Step 4: Simplify right side
    1,067,038.20x = 1,070,158,694,646.78
  5. Step 5: Solve for x
    x = 1,070,158,694,646.78/1,067,038.20
  6. Step 6: Final answer
    x = 1,002,924.45

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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.