Home / 728,831.94-1,005,813.09-422,885.22

Finding the Fourth Proportional to 728,831.94, 1,005,813.09 and 422,885.22

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Solution

The fourth proportional to 728,831.94, 1,005,813.09 and 422,885.22 is: 583,596.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,831.94 : 1,005,813.09 = 422,885.22 : x
  2. Step 2: Convert to fraction form
    728,831.94/1,005,813.09 = 422,885.22/x
  3. Step 3: Cross multiply
    728,831.94x = 1,005,813.09 × 422,885.22
  4. Step 4: Simplify right side
    728,831.94x = 425,343,489,843.53
  5. Step 5: Solve for x
    x = 425,343,489,843.53/728,831.94
  6. Step 6: Final answer
    x = 583,596.12

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.