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Finding the Fourth Proportional to 665,704.52, 918,672.20 and 363,898.52

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Solution

The fourth proportional to 665,704.52, 918,672.20 and 363,898.52 is: 502,179.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,704.52 : 918,672.20 = 363,898.52 : x
  2. Step 2: Convert to fraction form
    665,704.52/918,672.20 = 363,898.52/x
  3. Step 3: Cross multiply
    665,704.52x = 918,672.20 × 363,898.52
  4. Step 4: Simplify right side
    665,704.52x = 334,303,453,945.14
  5. Step 5: Solve for x
    x = 334,303,453,945.14/665,704.52
  6. Step 6: Final answer
    x = 502,179.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.