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Finding the Fourth Proportional to 618,107.76, 852,842.50 and 349,835.76

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Solution

The fourth proportional to 618,107.76, 852,842.50 and 349,835.76 is: 482,690.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,107.76 : 852,842.50 = 349,835.76 : x
  2. Step 2: Convert to fraction form
    618,107.76/852,842.50 = 349,835.76/x
  3. Step 3: Cross multiply
    618,107.76x = 852,842.50 × 349,835.76
  4. Step 4: Simplify right side
    618,107.76x = 298,354,804,147.80
  5. Step 5: Solve for x
    x = 298,354,804,147.80/618,107.76
  6. Step 6: Final answer
    x = 482,690.60

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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.