Home / 684,711.72-1,027,178.64-211,286.52

Finding the Fourth Proportional to 684,711.72, 1,027,178.64 and 211,286.52

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Solution

The fourth proportional to 684,711.72, 1,027,178.64 and 211,286.52 is: 316,964.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,711.72 : 1,027,178.64 = 211,286.52 : x
  2. Step 2: Convert to fraction form
    684,711.72/1,027,178.64 = 211,286.52/x
  3. Step 3: Cross multiply
    684,711.72x = 1,027,178.64 × 211,286.52
  4. Step 4: Simplify right side
    684,711.72x = 217,029,000,263.93
  5. Step 5: Solve for x
    x = 217,029,000,263.93/684,711.72
  6. Step 6: Final answer
    x = 316,964.05

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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.