Home / 1,115,054.82-1,538,652.24-618,326.28

Finding the Fourth Proportional to 1,115,054.82, 1,538,652.24 and 618,326.28

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Solution

The fourth proportional to 1,115,054.82, 1,538,652.24 and 618,326.28 is: 853,221.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,054.82 : 1,538,652.24 = 618,326.28 : x
  2. Step 2: Convert to fraction form
    1,115,054.82/1,538,652.24 = 618,326.28/x
  3. Step 3: Cross multiply
    1,115,054.82x = 1,538,652.24 × 618,326.28
  4. Step 4: Simplify right side
    1,115,054.82x = 951,389,115,772.87
  5. Step 5: Solve for x
    x = 951,389,115,772.87/1,115,054.82
  6. Step 6: Final answer
    x = 853,221.83

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Double scale
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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.