Home / 885,872.20-1,328,808.30-511,457.80

Finding the Fourth Proportional to 885,872.20, 1,328,808.30 and 511,457.80

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Solution

The fourth proportional to 885,872.20, 1,328,808.30 and 511,457.80 is: 767,186.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,872.20 : 1,328,808.30 = 511,457.80 : x
  2. Step 2: Convert to fraction form
    885,872.20/1,328,808.30 = 511,457.80/x
  3. Step 3: Cross multiply
    885,872.20x = 1,328,808.30 × 511,457.80
  4. Step 4: Simplify right side
    885,872.20x = 679,629,369,739.74
  5. Step 5: Solve for x
    x = 679,629,369,739.74/885,872.20
  6. Step 6: Final answer
    x = 767,186.70

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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.