Home / 641,077.71-884,660.22-354,579.50

Finding the Fourth Proportional to 641,077.71, 884,660.22 and 354,579.50

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Solution

The fourth proportional to 641,077.71, 884,660.22 and 354,579.50 is: 489,304.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,077.71 : 884,660.22 = 354,579.50 : x
  2. Step 2: Convert to fraction form
    641,077.71/884,660.22 = 354,579.50/x
  3. Step 3: Cross multiply
    641,077.71x = 884,660.22 × 354,579.50
  4. Step 4: Simplify right side
    641,077.71x = 313,682,374,054.19
  5. Step 5: Solve for x
    x = 313,682,374,054.19/641,077.71
  6. Step 6: Final answer
    x = 489,304.76

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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.