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Finding the Fourth Proportional to 618,108.76, 852,843.88 and 349,836.76

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Solution

The fourth proportional to 618,108.76, 852,843.88 and 349,836.76 is: 482,691.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,108.76 : 852,843.88 = 349,836.76 : x
  2. Step 2: Convert to fraction form
    618,108.76/852,843.88 = 349,836.76/x
  3. Step 3: Cross multiply
    618,108.76x = 852,843.88 × 349,836.76
  4. Step 4: Simplify right side
    618,108.76x = 298,356,139,765.03
  5. Step 5: Solve for x
    x = 298,356,139,765.03/618,108.76
  6. Step 6: Final answer
    x = 482,691.98

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1.5x scale

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.