Home / 1,218,680.05-1,684,988.81-1,067,343.25

Finding the Fourth Proportional to 1,218,680.05, 1,684,988.81 and 1,067,343.25

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Solution

The fourth proportional to 1,218,680.05, 1,684,988.81 and 1,067,343.25 is: 1,475,745.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,680.05 : 1,684,988.81 = 1,067,343.25 : x
  2. Step 2: Convert to fraction form
    1,218,680.05/1,684,988.81 = 1,067,343.25/x
  3. Step 3: Cross multiply
    1,218,680.05x = 1,684,988.81 × 1,067,343.25
  4. Step 4: Simplify right side
    1,218,680.05x = 1,798,461,432,679.03
  5. Step 5: Solve for x
    x = 1,798,461,432,679.03/1,218,680.05
  6. Step 6: Final answer
    x = 1,475,745.36

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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.