Home / 657,825.84-985,944.14-320,360.80

Finding the Fourth Proportional to 657,825.84, 985,944.14 and 320,360.80

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Solution

The fourth proportional to 657,825.84, 985,944.14 and 320,360.80 is: 480,154.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,825.84 : 985,944.14 = 320,360.80 : x
  2. Step 2: Convert to fraction form
    657,825.84/985,944.14 = 320,360.80/x
  3. Step 3: Cross multiply
    657,825.84x = 985,944.14 × 320,360.80
  4. Step 4: Simplify right side
    657,825.84x = 315,857,853,445.71
  5. Step 5: Solve for x
    x = 315,857,853,445.71/657,825.84
  6. Step 6: Final answer
    x = 480,154.22

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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.