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Finding the Fourth Proportional to 702,274.85, 969,132.39 and 379,977.87

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Solution

The fourth proportional to 702,274.85, 969,132.39 and 379,977.87 is: 524,365.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,274.85 : 969,132.39 = 379,977.87 : x
  2. Step 2: Convert to fraction form
    702,274.85/969,132.39 = 379,977.87/x
  3. Step 3: Cross multiply
    702,274.85x = 969,132.39 × 379,977.87
  4. Step 4: Simplify right side
    702,274.85x = 368,248,861,300.21
  5. Step 5: Solve for x
    x = 368,248,861,300.21/702,274.85
  6. Step 6: Final answer
    x = 524,365.73

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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.