Home / 728,236.50-1,004,554.77-455,831.52

Finding the Fourth Proportional to 728,236.50, 1,004,554.77 and 455,831.52

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Solution

The fourth proportional to 728,236.50, 1,004,554.77 and 455,831.52 is: 628,789.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,236.50 : 1,004,554.77 = 455,831.52 : x
  2. Step 2: Convert to fraction form
    728,236.50/1,004,554.77 = 455,831.52/x
  3. Step 3: Cross multiply
    728,236.50x = 1,004,554.77 × 455,831.52
  4. Step 4: Simplify right side
    728,236.50x = 457,907,727,732.35
  5. Step 5: Solve for x
    x = 457,907,727,732.35/728,236.50
  6. Step 6: Final answer
    x = 628,789.86

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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.