Home / 1,102,215.26-1,520,952.09-618,669.56

Finding the Fourth Proportional to 1,102,215.26, 1,520,952.09 and 618,669.56

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Solution

The fourth proportional to 1,102,215.26, 1,520,952.09 and 618,669.56 is: 853,705.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102,215.26 : 1,520,952.09 = 618,669.56 : x
  2. Step 2: Convert to fraction form
    1,102,215.26/1,520,952.09 = 618,669.56/x
  3. Step 3: Cross multiply
    1,102,215.26x = 1,520,952.09 × 618,669.56
  4. Step 4: Simplify right side
    1,102,215.26x = 940,966,761,783.75
  5. Step 5: Solve for x
    x = 940,966,761,783.75/1,102,215.26
  6. Step 6: Final answer
    x = 853,705.07

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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.