Home / 1,288,674.51-1,778,266.71-744,845.49

Finding the Fourth Proportional to 1,288,674.51, 1,778,266.71 and 744,845.49

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Solution

The fourth proportional to 1,288,674.51, 1,778,266.71 and 744,845.49 is: 1,027,826.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,674.51 : 1,778,266.71 = 744,845.49 : x
  2. Step 2: Convert to fraction form
    1,288,674.51/1,778,266.71 = 744,845.49/x
  3. Step 3: Cross multiply
    1,288,674.51x = 1,778,266.71 × 744,845.49
  4. Step 4: Simplify right side
    1,288,674.51x = 1,324,533,938,960.64
  5. Step 5: Solve for x
    x = 1,324,533,938,960.64/1,288,674.51
  6. Step 6: Final answer
    x = 1,027,826.60

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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.