Home / 426,246.84-639,039.78-276,170.04

Finding the Fourth Proportional to 426,246.84, 639,039.78 and 276,170.04

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Solution

The fourth proportional to 426,246.84, 639,039.78 and 276,170.04 is: 414,040.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,246.84 : 639,039.78 = 276,170.04 : x
  2. Step 2: Convert to fraction form
    426,246.84/639,039.78 = 276,170.04/x
  3. Step 3: Cross multiply
    426,246.84x = 639,039.78 × 276,170.04
  4. Step 4: Simplify right side
    426,246.84x = 176,483,641,604.19
  5. Step 5: Solve for x
    x = 176,483,641,604.19/426,246.84
  6. Step 6: Final answer
    x = 414,040.94

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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.