Home / 987,067.70-1,480,601.55-668,203.10

Finding the Fourth Proportional to 987,067.70, 1,480,601.55 and 668,203.10

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Solution

The fourth proportional to 987,067.70, 1,480,601.55 and 668,203.10 is: 1,002,304.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,067.70 : 1,480,601.55 = 668,203.10 : x
  2. Step 2: Convert to fraction form
    987,067.70/1,480,601.55 = 668,203.10/x
  3. Step 3: Cross multiply
    987,067.70x = 1,480,601.55 × 668,203.10
  4. Step 4: Simplify right side
    987,067.70x = 989,342,545,574.81
  5. Step 5: Solve for x
    x = 989,342,545,574.81/987,067.70
  6. Step 6: Final answer
    x = 1,002,304.65

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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.