Home / 811,755.96-1,217,642.16-362,499.72

Finding the Fourth Proportional to 811,755.96, 1,217,642.16 and 362,499.72

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Solution

The fourth proportional to 811,755.96, 1,217,642.16 and 362,499.72 is: 543,753.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,755.96 : 1,217,642.16 = 362,499.72 : x
  2. Step 2: Convert to fraction form
    811,755.96/1,217,642.16 = 362,499.72/x
  3. Step 3: Cross multiply
    811,755.96x = 1,217,642.16 × 362,499.72
  4. Step 4: Simplify right side
    811,755.96x = 441,394,942,060.20
  5. Step 5: Solve for x
    x = 441,394,942,060.20/811,755.96
  6. Step 6: Final answer
    x = 543,753.25

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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.