Home / 439,674.28-658,786.97-402,905.34

Finding the Fourth Proportional to 439,674.28, 658,786.97 and 402,905.34

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Solution

The fourth proportional to 439,674.28, 658,786.97 and 402,905.34 is: 603,694.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,674.28 : 658,786.97 = 402,905.34 : x
  2. Step 2: Convert to fraction form
    439,674.28/658,786.97 = 402,905.34/x
  3. Step 3: Cross multiply
    439,674.28x = 658,786.97 × 402,905.34
  4. Step 4: Simplify right side
    439,674.28x = 265,428,789,142.68
  5. Step 5: Solve for x
    x = 265,428,789,142.68/439,674.28
  6. Step 6: Final answer
    x = 603,694.15

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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.