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Finding the Fourth Proportional to 647,918.19, 972,172.67 and 332,596.71

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Solution

The fourth proportional to 647,918.19, 972,172.67 and 332,596.71 is: 499,046.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,918.19 : 972,172.67 = 332,596.71 : x
  2. Step 2: Convert to fraction form
    647,918.19/972,172.67 = 332,596.71/x
  3. Step 3: Cross multiply
    647,918.19x = 972,172.67 × 332,596.71
  4. Step 4: Simplify right side
    647,918.19x = 323,341,429,930.93
  5. Step 5: Solve for x
    x = 323,341,429,930.93/647,918.19
  6. Step 6: Final answer
    x = 499,046.69

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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.