Home / 879,215.10-1,318,808.34-280,168.17

Finding the Fourth Proportional to 879,215.10, 1,318,808.34 and 280,168.17

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Solution

The fourth proportional to 879,215.10, 1,318,808.34 and 280,168.17 is: 420,247.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,215.10 : 1,318,808.34 = 280,168.17 : x
  2. Step 2: Convert to fraction form
    879,215.10/1,318,808.34 = 280,168.17/x
  3. Step 3: Cross multiply
    879,215.10x = 1,318,808.34 × 280,168.17
  4. Step 4: Simplify right side
    879,215.10x = 369,488,119,198.54
  5. Step 5: Solve for x
    x = 369,488,119,198.54/879,215.10
  6. Step 6: Final answer
    x = 420,247.70

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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.