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Finding the Fourth Proportional to 663,434.20, 915,493.62 and 373,052.44

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Solution

The fourth proportional to 663,434.20, 915,493.62 and 373,052.44 is: 514,786.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,434.20 : 915,493.62 = 373,052.44 : x
  2. Step 2: Convert to fraction form
    663,434.20/915,493.62 = 373,052.44/x
  3. Step 3: Cross multiply
    663,434.20x = 915,493.62 × 373,052.44
  4. Step 4: Simplify right side
    663,434.20x = 341,527,128,745.43
  5. Step 5: Solve for x
    x = 341,527,128,745.43/663,434.20
  6. Step 6: Final answer
    x = 514,786.74

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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.