Home / 657,108.78-985,514.52-301,781.22

Finding the Fourth Proportional to 657,108.78, 985,514.52 and 301,781.22

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Solution

The fourth proportional to 657,108.78, 985,514.52 and 301,781.22 is: 452,603.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,108.78 : 985,514.52 = 301,781.22 : x
  2. Step 2: Convert to fraction form
    657,108.78/985,514.52 = 301,781.22/x
  3. Step 3: Cross multiply
    657,108.78x = 985,514.52 × 301,781.22
  4. Step 4: Simplify right side
    657,108.78x = 297,409,774,173.31
  5. Step 5: Solve for x
    x = 297,409,774,173.31/657,108.78
  6. Step 6: Final answer
    x = 452,603.56

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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.