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Finding the Fourth Proportional to 661,672.84, 993,011.10 and 484,639.24

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Solution

The fourth proportional to 661,672.84, 993,011.10 and 484,639.24 is: 727,326.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,672.84 : 993,011.10 = 484,639.24 : x
  2. Step 2: Convert to fraction form
    661,672.84/993,011.10 = 484,639.24/x
  3. Step 3: Cross multiply
    661,672.84x = 993,011.10 × 484,639.24
  4. Step 4: Simplify right side
    661,672.84x = 481,252,144,815.56
  5. Step 5: Solve for x
    x = 481,252,144,815.56/661,672.84
  6. Step 6: Final answer
    x = 727,326.43

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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.