Home / 1,268,898.47-1,751,093.45-688,122.70

Finding the Fourth Proportional to 1,268,898.47, 1,751,093.45 and 688,122.70

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Solution

The fourth proportional to 1,268,898.47, 1,751,093.45 and 688,122.70 is: 949,616.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,898.47 : 1,751,093.45 = 688,122.70 : x
  2. Step 2: Convert to fraction form
    1,268,898.47/1,751,093.45 = 688,122.70/x
  3. Step 3: Cross multiply
    1,268,898.47x = 1,751,093.45 × 688,122.70
  4. Step 4: Simplify right side
    1,268,898.47x = 1,204,967,151,399.12
  5. Step 5: Solve for x
    x = 1,204,967,151,399.12/1,268,898.47
  6. Step 6: Final answer
    x = 949,616.68

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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.