Home / 1,238,706.88-1,709,327.00-687,452.16

Finding the Fourth Proportional to 1,238,706.88, 1,709,327.00 and 687,452.16

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Solution

The fourth proportional to 1,238,706.88, 1,709,327.00 and 687,452.16 is: 948,634.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,706.88 : 1,709,327.00 = 687,452.16 : x
  2. Step 2: Convert to fraction form
    1,238,706.88/1,709,327.00 = 687,452.16/x
  3. Step 3: Cross multiply
    1,238,706.88x = 1,709,327.00 × 687,452.16
  4. Step 4: Simplify right side
    1,238,706.88x = 1,175,080,546,424.93
  5. Step 5: Solve for x
    x = 1,175,080,546,424.93/1,238,706.88
  6. Step 6: Final answer
    x = 948,634.88

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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.