Home / 1,252,431.55-1,728,358.82-679,471.72

Finding the Fourth Proportional to 1,252,431.55, 1,728,358.82 and 679,471.72

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Solution

The fourth proportional to 1,252,431.55, 1,728,358.82 and 679,471.72 is: 937,672.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252,431.55 : 1,728,358.82 = 679,471.72 : x
  2. Step 2: Convert to fraction form
    1,252,431.55/1,728,358.82 = 679,471.72/x
  3. Step 3: Cross multiply
    1,252,431.55x = 1,728,358.82 × 679,471.72
  4. Step 4: Simplify right side
    1,252,431.55x = 1,174,370,940,202.57
  5. Step 5: Solve for x
    x = 1,174,370,940,202.57/1,252,431.55
  6. Step 6: Final answer
    x = 937,672.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.