Home / 657,576.24-985,571.16-320,111.12

Finding the Fourth Proportional to 657,576.24, 985,571.16 and 320,111.12

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Solution

The fourth proportional to 657,576.24, 985,571.16 and 320,111.12 is: 479,780.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,576.24 : 985,571.16 = 320,111.12 : x
  2. Step 2: Convert to fraction form
    657,576.24/985,571.16 = 320,111.12/x
  3. Step 3: Cross multiply
    657,576.24x = 985,571.16 × 320,111.12
  4. Step 4: Simplify right side
    657,576.24x = 315,492,287,867.30
  5. Step 5: Solve for x
    x = 315,492,287,867.30/657,576.24
  6. Step 6: Final answer
    x = 479,780.55

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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.