Home / 829,972.80-1,244,959.20-511,108.20

Finding the Fourth Proportional to 829,972.80, 1,244,959.20 and 511,108.20

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Solution

The fourth proportional to 829,972.80, 1,244,959.20 and 511,108.20 is: 766,662.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,972.80 : 1,244,959.20 = 511,108.20 : x
  2. Step 2: Convert to fraction form
    829,972.80/1,244,959.20 = 511,108.20/x
  3. Step 3: Cross multiply
    829,972.80x = 1,244,959.20 × 511,108.20
  4. Step 4: Simplify right side
    829,972.80x = 636,308,855,785.44
  5. Step 5: Solve for x
    x = 636,308,855,785.44/829,972.80
  6. Step 6: Final answer
    x = 766,662.30

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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.