Home / 878,891.13-1,317,900.51-279,774.36

Finding the Fourth Proportional to 878,891.13, 1,317,900.51 and 279,774.36

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Solution

The fourth proportional to 878,891.13, 1,317,900.51 and 279,774.36 is: 419,522.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,891.13 : 1,317,900.51 = 279,774.36 : x
  2. Step 2: Convert to fraction form
    878,891.13/1,317,900.51 = 279,774.36/x
  3. Step 3: Cross multiply
    878,891.13x = 1,317,900.51 × 279,774.36
  4. Step 4: Simplify right side
    878,891.13x = 368,714,771,728.92
  5. Step 5: Solve for x
    x = 368,714,771,728.92/878,891.13
  6. Step 6: Final answer
    x = 419,522.69

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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.