Home / 657,992.64-986,788.02-278,906.25

Finding the Fourth Proportional to 657,992.64, 986,788.02 and 278,906.25

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Solution

The fourth proportional to 657,992.64, 986,788.02 and 278,906.25 is: 418,274.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,992.64 : 986,788.02 = 278,906.25 : x
  2. Step 2: Convert to fraction form
    657,992.64/986,788.02 = 278,906.25/x
  3. Step 3: Cross multiply
    657,992.64x = 986,788.02 × 278,906.25
  4. Step 4: Simplify right side
    657,992.64x = 275,221,346,203.13
  5. Step 5: Solve for x
    x = 275,221,346,203.13/657,992.64
  6. Step 6: Final answer
    x = 418,274.20

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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.