Home / 1,001,111.78-1,381,568.73-548,402.78

Finding the Fourth Proportional to 1,001,111.78, 1,381,568.73 and 548,402.78

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Solution

The fourth proportional to 1,001,111.78, 1,381,568.73 and 548,402.78 is: 756,814.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,001,111.78 : 1,381,568.73 = 548,402.78 : x
  2. Step 2: Convert to fraction form
    1,001,111.78/1,381,568.73 = 548,402.78/x
  3. Step 3: Cross multiply
    1,001,111.78x = 1,381,568.73 × 548,402.78
  4. Step 4: Simplify right side
    1,001,111.78x = 757,656,132,293.07
  5. Step 5: Solve for x
    x = 757,656,132,293.07/1,001,111.78
  6. Step 6: Final answer
    x = 756,814.72

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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.