Home / 878,974.02-1,318,024.62-279,857.34

Finding the Fourth Proportional to 878,974.02, 1,318,024.62 and 279,857.34

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Solution

The fourth proportional to 878,974.02, 1,318,024.62 and 279,857.34 is: 419,647.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,974.02 : 1,318,024.62 = 279,857.34 : x
  2. Step 2: Convert to fraction form
    878,974.02/1,318,024.62 = 279,857.34/x
  3. Step 3: Cross multiply
    878,974.02x = 1,318,024.62 × 279,857.34
  4. Step 4: Simplify right side
    878,974.02x = 368,858,864,207.71
  5. Step 5: Solve for x
    x = 368,858,864,207.71/878,974.02
  6. Step 6: Final answer
    x = 419,647.06

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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.