Home / 439,310.87-606,305.15-245,729.34

Finding the Fourth Proportional to 439,310.87, 606,305.15 and 245,729.34

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Solution

The fourth proportional to 439,310.87, 606,305.15 and 245,729.34 is: 339,137.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,310.87 : 606,305.15 = 245,729.34 : x
  2. Step 2: Convert to fraction form
    439,310.87/606,305.15 = 245,729.34/x
  3. Step 3: Cross multiply
    439,310.87x = 606,305.15 × 245,729.34
  4. Step 4: Simplify right side
    439,310.87x = 148,986,963,614.63
  5. Step 5: Solve for x
    x = 148,986,963,614.63/439,310.87
  6. Step 6: Final answer
    x = 339,137.89

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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.