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Finding the Fourth Proportional to 641,957.32, 962,364.93 and 304,789.96

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Solution

The fourth proportional to 641,957.32, 962,364.93 and 304,789.96 is: 456,913.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,957.32 : 962,364.93 = 304,789.96 : x
  2. Step 2: Convert to fraction form
    641,957.32/962,364.93 = 304,789.96/x
  3. Step 3: Cross multiply
    641,957.32x = 962,364.93 × 304,789.96
  4. Step 4: Simplify right side
    641,957.32x = 293,319,168,520.10
  5. Step 5: Solve for x
    x = 293,319,168,520.10/641,957.32
  6. Step 6: Final answer
    x = 456,913.82

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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.