Home / 811,052-1,216,844.54-331,683.04

Finding the Fourth Proportional to 811,052, 1,216,844.54 and 331,683.04

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Solution

The fourth proportional to 811,052, 1,216,844.54 and 331,683.04 is: 497,633.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,052 : 1,216,844.54 = 331,683.04 : x
  2. Step 2: Convert to fraction form
    811,052/1,216,844.54 = 331,683.04/x
  3. Step 3: Cross multiply
    811,052x = 1,216,844.54 × 331,683.04
  4. Step 4: Simplify right side
    811,052x = 403,606,696,234.60
  5. Step 5: Solve for x
    x = 403,606,696,234.60/811,052
  6. Step 6: Final answer
    x = 497,633.56

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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.