Home / 1,380,238.80-1,904,816.55-836,422.14

Finding the Fourth Proportional to 1,380,238.80, 1,904,816.55 and 836,422.14

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Solution

The fourth proportional to 1,380,238.80, 1,904,816.55 and 836,422.14 is: 1,154,315.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,238.80 : 1,904,816.55 = 836,422.14 : x
  2. Step 2: Convert to fraction form
    1,380,238.80/1,904,816.55 = 836,422.14/x
  3. Step 3: Cross multiply
    1,380,238.80x = 1,904,816.55 × 836,422.14
  4. Step 4: Simplify right side
    1,380,238.80x = 1,593,230,735,058.42
  5. Step 5: Solve for x
    x = 1,593,230,735,058.42/1,380,238.80
  6. Step 6: Final answer
    x = 1,154,315.28

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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.