Home / 805,190.47-1,111,176.66-442,629.61

Finding the Fourth Proportional to 805,190.47, 1,111,176.66 and 442,629.61

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Solution

The fourth proportional to 805,190.47, 1,111,176.66 and 442,629.61 is: 610,836.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,190.47 : 1,111,176.66 = 442,629.61 : x
  2. Step 2: Convert to fraction form
    805,190.47/1,111,176.66 = 442,629.61/x
  3. Step 3: Cross multiply
    805,190.47x = 1,111,176.66 × 442,629.61
  4. Step 4: Simplify right side
    805,190.47x = 491,839,696,789.19
  5. Step 5: Solve for x
    x = 491,839,696,789.19/805,190.47
  6. Step 6: Final answer
    x = 610,836.46

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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.