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Finding the Fourth Proportional to 675,992.81, 932,870.09 and 374,186.81

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Solution

The fourth proportional to 675,992.81, 932,870.09 and 374,186.81 is: 516,377.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,992.81 : 932,870.09 = 374,186.81 : x
  2. Step 2: Convert to fraction form
    675,992.81/932,870.09 = 374,186.81/x
  3. Step 3: Cross multiply
    675,992.81x = 932,870.09 × 374,186.81
  4. Step 4: Simplify right side
    675,992.81x = 349,067,686,389.16
  5. Step 5: Solve for x
    x = 349,067,686,389.16/675,992.81
  6. Step 6: Final answer
    x = 516,377.81

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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.