Home / 1,117,791.36-1,542,764.64-634,401.78

Finding the Fourth Proportional to 1,117,791.36, 1,542,764.64 and 634,401.78

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Solution

The fourth proportional to 1,117,791.36, 1,542,764.64 and 634,401.78 is: 875,595.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117,791.36 : 1,542,764.64 = 634,401.78 : x
  2. Step 2: Convert to fraction form
    1,117,791.36/1,542,764.64 = 634,401.78/x
  3. Step 3: Cross multiply
    1,117,791.36x = 1,542,764.64 × 634,401.78
  4. Step 4: Simplify right side
    1,117,791.36x = 978,732,633,737.06
  5. Step 5: Solve for x
    x = 978,732,633,737.06/1,117,791.36
  6. Step 6: Final answer
    x = 875,595.10

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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.