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Finding the Fourth Proportional to 641,429.87, 962,124.95 and 304,712.87

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Solution

The fourth proportional to 641,429.87, 962,124.95 and 304,712.87 is: 457,059.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,429.87 : 962,124.95 = 304,712.87 : x
  2. Step 2: Convert to fraction form
    641,429.87/962,124.95 = 304,712.87/x
  3. Step 3: Cross multiply
    641,429.87x = 962,124.95 × 304,712.87
  4. Step 4: Simplify right side
    641,429.87x = 293,171,850,764.26
  5. Step 5: Solve for x
    x = 293,171,850,764.26/641,429.87
  6. Step 6: Final answer
    x = 457,059.87

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1.5x scale

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.