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Finding the Fourth Proportional to 647,810.46, 971,715.69 and 332,065.98

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Solution

The fourth proportional to 647,810.46, 971,715.69 and 332,065.98 is: 498,098.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,810.46 : 971,715.69 = 332,065.98 : x
  2. Step 2: Convert to fraction form
    647,810.46/971,715.69 = 332,065.98/x
  3. Step 3: Cross multiply
    647,810.46x = 971,715.69 × 332,065.98
  4. Step 4: Simplify right side
    647,810.46x = 322,673,722,881.23
  5. Step 5: Solve for x
    x = 322,673,722,881.23/647,810.46
  6. Step 6: Final answer
    x = 498,098.97

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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.