Home / 657,912.16-986,073.02-320,447.13

Finding the Fourth Proportional to 657,912.16, 986,073.02 and 320,447.13

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Solution

The fourth proportional to 657,912.16, 986,073.02 and 320,447.13 is: 480,283.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,912.16 : 986,073.02 = 320,447.13 : x
  2. Step 2: Convert to fraction form
    657,912.16/986,073.02 = 320,447.13/x
  3. Step 3: Cross multiply
    657,912.16x = 986,073.02 × 320,447.13
  4. Step 4: Simplify right side
    657,912.16x = 315,984,269,229.43
  5. Step 5: Solve for x
    x = 315,984,269,229.43/657,912.16
  6. Step 6: Final answer
    x = 480,283.37

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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.