Home / 878,417.74-1,317,612.75-279,370.24

Finding the Fourth Proportional to 878,417.74, 1,317,612.75 and 279,370.24

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Solution

The fourth proportional to 878,417.74, 1,317,612.75 and 279,370.24 is: 419,050.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,417.74 : 1,317,612.75 = 279,370.24 : x
  2. Step 2: Convert to fraction form
    878,417.74/1,317,612.75 = 279,370.24/x
  3. Step 3: Cross multiply
    878,417.74x = 1,317,612.75 × 279,370.24
  4. Step 4: Simplify right side
    878,417.74x = 368,101,790,194.56
  5. Step 5: Solve for x
    x = 368,101,790,194.56/878,417.74
  6. Step 6: Final answer
    x = 419,050.95

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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.