Home / 1,298,105.64-1,800,551.07-1,263,580.20

Finding the Fourth Proportional to 1,298,105.64, 1,800,551.07 and 1,263,580.20

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Solution

The fourth proportional to 1,298,105.64, 1,800,551.07 and 1,263,580.20 is: 1,752,662.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,105.64 : 1,800,551.07 = 1,263,580.20 : x
  2. Step 2: Convert to fraction form
    1,298,105.64/1,800,551.07 = 1,263,580.20/x
  3. Step 3: Cross multiply
    1,298,105.64x = 1,800,551.07 × 1,263,580.20
  4. Step 4: Simplify right side
    1,298,105.64x = 2,275,140,681,140.81
  5. Step 5: Solve for x
    x = 2,275,140,681,140.81/1,298,105.64
  6. Step 6: Final answer
    x = 1,752,662.20

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.