Home / 657,568.23-985,559.22-320,103.06

Finding the Fourth Proportional to 657,568.23, 985,559.22 and 320,103.06

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Solution

The fourth proportional to 657,568.23, 985,559.22 and 320,103.06 is: 479,768.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,568.23 : 985,559.22 = 320,103.06 : x
  2. Step 2: Convert to fraction form
    657,568.23/985,559.22 = 320,103.06/x
  3. Step 3: Cross multiply
    657,568.23x = 985,559.22 × 320,103.06
  4. Step 4: Simplify right side
    657,568.23x = 315,480,522,133.21
  5. Step 5: Solve for x
    x = 315,480,522,133.21/657,568.23
  6. Step 6: Final answer
    x = 479,768.50

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1.5x scale

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.