Home / 1,263,664.78-1,744,170.77-720,123.05

Finding the Fourth Proportional to 1,263,664.78, 1,744,170.77 and 720,123.05

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Solution

The fourth proportional to 1,263,664.78, 1,744,170.77 and 720,123.05 is: 993,948.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263,664.78 : 1,744,170.77 = 720,123.05 : x
  2. Step 2: Convert to fraction form
    1,263,664.78/1,744,170.77 = 720,123.05/x
  3. Step 3: Cross multiply
    1,263,664.78x = 1,744,170.77 × 720,123.05
  4. Step 4: Simplify right side
    1,263,664.78x = 1,256,017,574,613.25
  5. Step 5: Solve for x
    x = 1,256,017,574,613.25/1,263,664.78
  6. Step 6: Final answer
    x = 993,948.39

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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.