Home / 879,218.10-1,318,812.84-280,171.17

Finding the Fourth Proportional to 879,218.10, 1,318,812.84 and 280,171.17

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Solution

The fourth proportional to 879,218.10, 1,318,812.84 and 280,171.17 is: 420,252.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,218.10 : 1,318,812.84 = 280,171.17 : x
  2. Step 2: Convert to fraction form
    879,218.10/1,318,812.84 = 280,171.17/x
  3. Step 3: Cross multiply
    879,218.10x = 1,318,812.84 × 280,171.17
  4. Step 4: Simplify right side
    879,218.10x = 369,493,336,393.82
  5. Step 5: Solve for x
    x = 369,493,336,393.82/879,218.10
  6. Step 6: Final answer
    x = 420,252.19

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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.