Home / 879,448.62-1,319,159.03-280,405.73

Finding the Fourth Proportional to 879,448.62, 1,319,159.03 and 280,405.73

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Solution

The fourth proportional to 879,448.62, 1,319,159.03 and 280,405.73 is: 420,604.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,448.62 : 1,319,159.03 = 280,405.73 : x
  2. Step 2: Convert to fraction form
    879,448.62/1,319,159.03 = 280,405.73/x
  3. Step 3: Cross multiply
    879,448.62x = 1,319,159.03 × 280,405.73
  4. Step 4: Simplify right side
    879,448.62x = 369,899,752,689.11
  5. Step 5: Solve for x
    x = 369,899,752,689.11/879,448.62
  6. Step 6: Final answer
    x = 420,604.17

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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.