Home / 657,914.16-986,076.02-320,449.13

Finding the Fourth Proportional to 657,914.16, 986,076.02 and 320,449.13

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Solution

The fourth proportional to 657,914.16, 986,076.02 and 320,449.13 is: 480,286.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,914.16 : 986,076.02 = 320,449.13 : x
  2. Step 2: Convert to fraction form
    657,914.16/986,076.02 = 320,449.13/x
  3. Step 3: Cross multiply
    657,914.16x = 986,076.02 × 320,449.13
  4. Step 4: Simplify right side
    657,914.16x = 315,987,202,722.86
  5. Step 5: Solve for x
    x = 315,987,202,722.86/657,914.16
  6. Step 6: Final answer
    x = 480,286.37

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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.