Home / 657,991.20-985,674.60-377,180.40

Finding the Fourth Proportional to 657,991.20, 985,674.60 and 377,180.40

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Solution

The fourth proportional to 657,991.20, 985,674.60 and 377,180.40 is: 565,018.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,991.20 : 985,674.60 = 377,180.40 : x
  2. Step 2: Convert to fraction form
    657,991.20/985,674.60 = 377,180.40/x
  3. Step 3: Cross multiply
    657,991.20x = 985,674.60 × 377,180.40
  4. Step 4: Simplify right side
    657,991.20x = 371,777,139,897.84
  5. Step 5: Solve for x
    x = 371,777,139,897.84/657,991.20
  6. Step 6: Final answer
    x = 565,018.41

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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.