Home / 1,327,568.51-1,992,829.80-687,701.45

Finding the Fourth Proportional to 1,327,568.51, 1,992,829.80 and 687,701.45

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Solution

The fourth proportional to 1,327,568.51, 1,992,829.80 and 687,701.45 is: 1,032,317.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327,568.51 : 1,992,829.80 = 687,701.45 : x
  2. Step 2: Convert to fraction form
    1,327,568.51/1,992,829.80 = 687,701.45/x
  3. Step 3: Cross multiply
    1,327,568.51x = 1,992,829.80 × 687,701.45
  4. Step 4: Simplify right side
    1,327,568.51x = 1,370,471,943,063.21
  5. Step 5: Solve for x
    x = 1,370,471,943,063.21/1,327,568.51
  6. Step 6: Final answer
    x = 1,032,317.30

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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.