Home / 808,046.91-1,115,107.02-485,941.50

Finding the Fourth Proportional to 808,046.91, 1,115,107.02 and 485,941.50

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Solution

The fourth proportional to 808,046.91, 1,115,107.02 and 485,941.50 is: 670,600.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,046.91 : 1,115,107.02 = 485,941.50 : x
  2. Step 2: Convert to fraction form
    808,046.91/1,115,107.02 = 485,941.50/x
  3. Step 3: Cross multiply
    808,046.91x = 1,115,107.02 × 485,941.50
  4. Step 4: Simplify right side
    808,046.91x = 541,876,777,959.33
  5. Step 5: Solve for x
    x = 541,876,777,959.33/808,046.91
  6. Step 6: Final answer
    x = 670,600.64

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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.