Home / 811,936.04-1,120,360.82-467,643.92

Finding the Fourth Proportional to 811,936.04, 1,120,360.82 and 467,643.92

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Solution

The fourth proportional to 811,936.04, 1,120,360.82 and 467,643.92 is: 645,284.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,936.04 : 1,120,360.82 = 467,643.92 : x
  2. Step 2: Convert to fraction form
    811,936.04/1,120,360.82 = 467,643.92/x
  3. Step 3: Cross multiply
    811,936.04x = 1,120,360.82 × 467,643.92
  4. Step 4: Simplify right side
    811,936.04x = 523,929,917,739.19
  5. Step 5: Solve for x
    x = 523,929,917,739.19/811,936.04
  6. Step 6: Final answer
    x = 645,284.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.