Home / 2,087,821.52-3,131,732.30-511,885.52

Finding the Fourth Proportional to 2,087,821.52, 3,131,732.30 and 511,885.52

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Solution

The fourth proportional to 2,087,821.52, 3,131,732.30 and 511,885.52 is: 767,828.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087,821.52 : 3,131,732.30 = 511,885.52 : x
  2. Step 2: Convert to fraction form
    2,087,821.52/3,131,732.30 = 511,885.52/x
  3. Step 3: Cross multiply
    2,087,821.52x = 3,131,732.30 × 511,885.52
  4. Step 4: Simplify right side
    2,087,821.52x = 1,603,088,416,886.30
  5. Step 5: Solve for x
    x = 1,603,088,416,886.30/2,087,821.52
  6. Step 6: Final answer
    x = 767,828.28

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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.