Home / 511,815.80-766,557.30-301,863.80

Finding the Fourth Proportional to 511,815.80, 766,557.30 and 301,863.80

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Solution

The fourth proportional to 511,815.80, 766,557.30 and 301,863.80 is: 452,107.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,815.80 : 766,557.30 = 301,863.80 : x
  2. Step 2: Convert to fraction form
    511,815.80/766,557.30 = 301,863.80/x
  3. Step 3: Cross multiply
    511,815.80x = 766,557.30 × 301,863.80
  4. Step 4: Simplify right side
    511,815.80x = 231,395,899,495.74
  5. Step 5: Solve for x
    x = 231,395,899,495.74/511,815.80
  6. Step 6: Final answer
    x = 452,107.77

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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.