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Finding the Fourth Proportional to 641,682.85, 963,470.49 and 357,927.82

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Solution

The fourth proportional to 641,682.85, 963,470.49 and 357,927.82 is: 537,419.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,682.85 : 963,470.49 = 357,927.82 : x
  2. Step 2: Convert to fraction form
    641,682.85/963,470.49 = 357,927.82/x
  3. Step 3: Cross multiply
    641,682.85x = 963,470.49 × 357,927.82
  4. Step 4: Simplify right side
    641,682.85x = 344,852,892,120.03
  5. Step 5: Solve for x
    x = 344,852,892,120.03/641,682.85
  6. Step 6: Final answer
    x = 537,419.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.