Home / 811,832.02-1,217,753.22-212,788

Finding the Fourth Proportional to 811,832.02, 1,217,753.22 and 212,788

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Solution

The fourth proportional to 811,832.02, 1,217,753.22 and 212,788 is: 319,183.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,832.02 : 1,217,753.22 = 212,788 : x
  2. Step 2: Convert to fraction form
    811,832.02/1,217,753.22 = 212,788/x
  3. Step 3: Cross multiply
    811,832.02x = 1,217,753.22 × 212,788
  4. Step 4: Simplify right side
    811,832.02x = 259,123,272,177.36
  5. Step 5: Solve for x
    x = 259,123,272,177.36/811,832.02
  6. Step 6: Final answer
    x = 319,183.36

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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.