Home / 811,199.93-1,215,941.83-305,542.13

Finding the Fourth Proportional to 811,199.93, 1,215,941.83 and 305,542.13

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Solution

The fourth proportional to 811,199.93, 1,215,941.83 and 305,542.13 is: 457,990.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,199.93 : 1,215,941.83 = 305,542.13 : x
  2. Step 2: Convert to fraction form
    811,199.93/1,215,941.83 = 305,542.13/x
  3. Step 3: Cross multiply
    811,199.93x = 1,215,941.83 × 305,542.13
  4. Step 4: Simplify right side
    811,199.93x = 371,521,456,694.30
  5. Step 5: Solve for x
    x = 371,521,456,694.30/811,199.93
  6. Step 6: Final answer
    x = 457,990.00

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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.