Home / 791,948.69-1,091,831.96-629,145.38

Finding the Fourth Proportional to 791,948.69, 1,091,831.96 and 629,145.38

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Solution

The fourth proportional to 791,948.69, 1,091,831.96 and 629,145.38 is: 867,380.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,948.69 : 1,091,831.96 = 629,145.38 : x
  2. Step 2: Convert to fraction form
    791,948.69/1,091,831.96 = 629,145.38/x
  3. Step 3: Cross multiply
    791,948.69x = 1,091,831.96 × 629,145.38
  4. Step 4: Simplify right side
    791,948.69x = 686,921,027,992.29
  5. Step 5: Solve for x
    x = 686,921,027,992.29/791,948.69
  6. Step 6: Final answer
    x = 867,380.72

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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.