Home / 657,577.24-985,572.66-320,112.12

Finding the Fourth Proportional to 657,577.24, 985,572.66 and 320,112.12

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Solution

The fourth proportional to 657,577.24, 985,572.66 and 320,112.12 is: 479,782.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,577.24 : 985,572.66 = 320,112.12 : x
  2. Step 2: Convert to fraction form
    657,577.24/985,572.66 = 320,112.12/x
  3. Step 3: Cross multiply
    657,577.24x = 985,572.66 × 320,112.12
  4. Step 4: Simplify right side
    657,577.24x = 315,493,753,606.64
  5. Step 5: Solve for x
    x = 315,493,753,606.64/657,577.24
  6. Step 6: Final answer
    x = 479,782.05

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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.