Home / 840,382.50-1,260,584.67-279,417

Finding the Fourth Proportional to 840,382.50, 1,260,584.67 and 279,417

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Solution

The fourth proportional to 840,382.50, 1,260,584.67 and 279,417 is: 419,129.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,382.50 : 1,260,584.67 = 279,417 : x
  2. Step 2: Convert to fraction form
    840,382.50/1,260,584.67 = 279,417/x
  3. Step 3: Cross multiply
    840,382.50x = 1,260,584.67 × 279,417
  4. Step 4: Simplify right side
    840,382.50x = 352,228,786,737.39
  5. Step 5: Solve for x
    x = 352,228,786,737.39/840,382.50
  6. Step 6: Final answer
    x = 419,129.13

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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.