Home / 921,540.62-1,268,831.93-783,447.82

Finding the Fourth Proportional to 921,540.62, 1,268,831.93 and 783,447.82

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Solution

The fourth proportional to 921,540.62, 1,268,831.93 and 783,447.82 is: 1,078,697.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,540.62 : 1,268,831.93 = 783,447.82 : x
  2. Step 2: Convert to fraction form
    921,540.62/1,268,831.93 = 783,447.82/x
  3. Step 3: Cross multiply
    921,540.62x = 1,268,831.93 × 783,447.82
  4. Step 4: Simplify right side
    921,540.62x = 994,063,605,587.65
  5. Step 5: Solve for x
    x = 994,063,605,587.65/921,540.62
  6. Step 6: Final answer
    x = 1,078,697.55

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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.