Home / 1,268,628.48-1,752,883.20-1,223,216.64

Finding the Fourth Proportional to 1,268,628.48, 1,752,883.20 and 1,223,216.64

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Solution

The fourth proportional to 1,268,628.48, 1,752,883.20 and 1,223,216.64 is: 1,690,136.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,628.48 : 1,752,883.20 = 1,223,216.64 : x
  2. Step 2: Convert to fraction form
    1,268,628.48/1,752,883.20 = 1,223,216.64/x
  3. Step 3: Cross multiply
    1,268,628.48x = 1,752,883.20 × 1,223,216.64
  4. Step 4: Simplify right side
    1,268,628.48x = 2,144,155,898,216.45
  5. Step 5: Solve for x
    x = 2,144,155,898,216.45/1,268,628.48
  6. Step 6: Final answer
    x = 1,690,136.97

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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.