Home / 885,467.20-1,328,200.80-511,052.80

Finding the Fourth Proportional to 885,467.20, 1,328,200.80 and 511,052.80

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Solution

The fourth proportional to 885,467.20, 1,328,200.80 and 511,052.80 is: 766,579.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,467.20 : 1,328,200.80 = 511,052.80 : x
  2. Step 2: Convert to fraction form
    885,467.20/1,328,200.80 = 511,052.80/x
  3. Step 3: Cross multiply
    885,467.20x = 1,328,200.80 × 511,052.80
  4. Step 4: Simplify right side
    885,467.20x = 678,780,737,802.24
  5. Step 5: Solve for x
    x = 678,780,737,802.24/885,467.20
  6. Step 6: Final answer
    x = 766,579.20

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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.