Home / 1,448,215.80-2,172,615.30-1,213,186.20

Finding the Fourth Proportional to 1,448,215.80, 2,172,615.30 and 1,213,186.20

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Solution

The fourth proportional to 1,448,215.80, 2,172,615.30 and 1,213,186.20 is: 1,820,023.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,448,215.80 : 2,172,615.30 = 1,213,186.20 : x
  2. Step 2: Convert to fraction form
    1,448,215.80/2,172,615.30 = 1,213,186.20/x
  3. Step 3: Cross multiply
    1,448,215.80x = 2,172,615.30 × 1,213,186.20
  4. Step 4: Simplify right side
    1,448,215.80x = 2,635,786,899,868.86
  5. Step 5: Solve for x
    x = 2,635,786,899,868.86/1,448,215.80
  6. Step 6: Final answer
    x = 1,820,023.58

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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.