Home / 1,102,221.09-1,520,960.07-618,675.39

Finding the Fourth Proportional to 1,102,221.09, 1,520,960.07 and 618,675.39

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Solution

The fourth proportional to 1,102,221.09, 1,520,960.07 and 618,675.39 is: 853,713.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102,221.09 : 1,520,960.07 = 618,675.39 : x
  2. Step 2: Convert to fraction form
    1,102,221.09/1,520,960.07 = 618,675.39/x
  3. Step 3: Cross multiply
    1,102,221.09x = 1,520,960.07 × 618,675.39
  4. Step 4: Simplify right side
    1,102,221.09x = 940,980,564,481.68
  5. Step 5: Solve for x
    x = 940,980,564,481.68/1,102,221.09
  6. Step 6: Final answer
    x = 853,713.08

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1.5x scale

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.