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Finding the Fourth Proportional to 677,269, 934,660.38 and 375,463

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Solution

The fourth proportional to 677,269, 934,660.38 and 375,463 is: 518,155.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,269 : 934,660.38 = 375,463 : x
  2. Step 2: Convert to fraction form
    677,269/934,660.38 = 375,463/x
  3. Step 3: Cross multiply
    677,269x = 934,660.38 × 375,463
  4. Step 4: Simplify right side
    677,269x = 350,930,390,255.94
  5. Step 5: Solve for x
    x = 350,930,390,255.94/677,269
  6. Step 6: Final answer
    x = 518,155.11

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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.