Home / 1,264,781.76-1,745,361.72-691,809.54

Finding the Fourth Proportional to 1,264,781.76, 1,745,361.72 and 691,809.54

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Solution

The fourth proportional to 1,264,781.76, 1,745,361.72 and 691,809.54 is: 954,676.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,264,781.76 : 1,745,361.72 = 691,809.54 : x
  2. Step 2: Convert to fraction form
    1,264,781.76/1,745,361.72 = 691,809.54/x
  3. Step 3: Cross multiply
    1,264,781.76x = 1,745,361.72 × 691,809.54
  4. Step 4: Simplify right side
    1,264,781.76x = 1,207,457,888,646.81
  5. Step 5: Solve for x
    x = 1,207,457,888,646.81/1,264,781.76
  6. Step 6: Final answer
    x = 954,676.87

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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.