Home / 1,665,389.78-2,498,430.27-668,195.54

Finding the Fourth Proportional to 1,665,389.78, 2,498,430.27 and 668,195.54

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Solution

The fourth proportional to 1,665,389.78, 2,498,430.27 and 668,195.54 is: 1,002,431.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,665,389.78 : 2,498,430.27 = 668,195.54 : x
  2. Step 2: Convert to fraction form
    1,665,389.78/2,498,430.27 = 668,195.54/x
  3. Step 3: Cross multiply
    1,665,389.78x = 2,498,430.27 × 668,195.54
  4. Step 4: Simplify right side
    1,665,389.78x = 1,669,439,963,415.00
  5. Step 5: Solve for x
    x = 1,669,439,963,415.00/1,665,389.78
  6. Step 6: Final answer
    x = 1,002,431.97

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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.