Home / 1,149,681.88-1,586,609.94-640,384.48

Finding the Fourth Proportional to 1,149,681.88, 1,586,609.94 and 640,384.48

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Solution

The fourth proportional to 1,149,681.88, 1,586,609.94 and 640,384.48 is: 883,757.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149,681.88 : 1,586,609.94 = 640,384.48 : x
  2. Step 2: Convert to fraction form
    1,149,681.88/1,586,609.94 = 640,384.48/x
  3. Step 3: Cross multiply
    1,149,681.88x = 1,586,609.94 × 640,384.48
  4. Step 4: Simplify right side
    1,149,681.88x = 1,016,040,381,389.73
  5. Step 5: Solve for x
    x = 1,016,040,381,389.73/1,149,681.88
  6. Step 6: Final answer
    x = 883,757.85

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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.