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Finding the Fourth Proportional to 641,679.50, 963,465.47 and 357,924.45

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Solution

The fourth proportional to 641,679.50, 963,465.47 and 357,924.45 is: 537,414.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,679.50 : 963,465.47 = 357,924.45 : x
  2. Step 2: Convert to fraction form
    641,679.50/963,465.47 = 357,924.45/x
  3. Step 3: Cross multiply
    641,679.50x = 963,465.47 × 357,924.45
  4. Step 4: Simplify right side
    641,679.50x = 344,847,846,654.12
  5. Step 5: Solve for x
    x = 344,847,846,654.12/641,679.50
  6. Step 6: Final answer
    x = 537,414.47

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