Home / 657,631.82-986,476.44-208,385.79

Finding the Fourth Proportional to 657,631.82, 986,476.44 and 208,385.79

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Solution

The fourth proportional to 657,631.82, 986,476.44 and 208,385.79 is: 312,587.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,631.82 : 986,476.44 = 208,385.79 : x
  2. Step 2: Convert to fraction form
    657,631.82/986,476.44 = 208,385.79/x
  3. Step 3: Cross multiply
    657,631.82x = 986,476.44 × 208,385.79
  4. Step 4: Simplify right side
    657,631.82x = 205,567,672,265.79
  5. Step 5: Solve for x
    x = 205,567,672,265.79/657,631.82
  6. Step 6: Final answer
    x = 312,587.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.