Home / 439,105.49-605,631.23-377,955.75

Finding the Fourth Proportional to 439,105.49, 605,631.23 and 377,955.75

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Solution

The fourth proportional to 439,105.49, 605,631.23 and 377,955.75 is: 521,291.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,105.49 : 605,631.23 = 377,955.75 : x
  2. Step 2: Convert to fraction form
    439,105.49/605,631.23 = 377,955.75/x
  3. Step 3: Cross multiply
    439,105.49x = 605,631.23 × 377,955.75
  4. Step 4: Simplify right side
    439,105.49x = 228,901,805,758.07
  5. Step 5: Solve for x
    x = 228,901,805,758.07/439,105.49
  6. Step 6: Final answer
    x = 521,291.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.