Home / 1,102,520.70-1,521,372.68-618,975

Finding the Fourth Proportional to 1,102,520.70, 1,521,372.68 and 618,975

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Solution

The fourth proportional to 1,102,520.70, 1,521,372.68 and 618,975 is: 854,126.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102,520.70 : 1,521,372.68 = 618,975 : x
  2. Step 2: Convert to fraction form
    1,102,520.70/1,521,372.68 = 618,975/x
  3. Step 3: Cross multiply
    1,102,520.70x = 1,521,372.68 × 618,975
  4. Step 4: Simplify right side
    1,102,520.70x = 941,691,653,829.28
  5. Step 5: Solve for x
    x = 941,691,653,829.28/1,102,520.70
  6. Step 6: Final answer
    x = 854,126.05

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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.