Home / 1,486,361.53-2,229,542.30-421,412.82

Finding the Fourth Proportional to 1,486,361.53, 2,229,542.30 and 421,412.82

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Solution

The fourth proportional to 1,486,361.53, 2,229,542.30 and 421,412.82 is: 632,119.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,486,361.53 : 2,229,542.30 = 421,412.82 : x
  2. Step 2: Convert to fraction form
    1,486,361.53/2,229,542.30 = 421,412.82/x
  3. Step 3: Cross multiply
    1,486,361.53x = 2,229,542.30 × 421,412.82
  4. Step 4: Simplify right side
    1,486,361.53x = 939,557,707,952.29
  5. Step 5: Solve for x
    x = 939,557,707,952.29/1,486,361.53
  6. Step 6: Final answer
    x = 632,119.23

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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.