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Finding the Fourth Proportional to 531,117.32, 796,911.46 and 278,337.70

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Solution

The fourth proportional to 531,117.32, 796,911.46 and 278,337.70 is: 417,629.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,117.32 : 796,911.46 = 278,337.70 : x
  2. Step 2: Convert to fraction form
    531,117.32/796,911.46 = 278,337.70/x
  3. Step 3: Cross multiply
    531,117.32x = 796,911.46 × 278,337.70
  4. Step 4: Simplify right side
    531,117.32x = 221,810,504,745.99
  5. Step 5: Solve for x
    x = 221,810,504,745.99/531,117.32
  6. Step 6: Final answer
    x = 417,629.96

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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.