Home / 878,956.02-1,317,997.71-279,839.25

Finding the Fourth Proportional to 878,956.02, 1,317,997.71 and 279,839.25

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Solution

The fourth proportional to 878,956.02, 1,317,997.71 and 279,839.25 is: 419,619.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,956.02 : 1,317,997.71 = 279,839.25 : x
  2. Step 2: Convert to fraction form
    878,956.02/1,317,997.71 = 279,839.25/x
  3. Step 3: Cross multiply
    878,956.02x = 1,317,997.71 × 279,839.25
  4. Step 4: Simplify right side
    878,956.02x = 368,827,490,668.12
  5. Step 5: Solve for x
    x = 368,827,490,668.12/878,956.02
  6. Step 6: Final answer
    x = 419,619.96

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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.