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Finding the Fourth Proportional to 647,907.94, 972,157.29 and 332,586.46

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Solution

The fourth proportional to 647,907.94, 972,157.29 and 332,586.46 is: 499,031.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,907.94 : 972,157.29 = 332,586.46 : x
  2. Step 2: Convert to fraction form
    647,907.94/972,157.29 = 332,586.46/x
  3. Step 3: Cross multiply
    647,907.94x = 972,157.29 × 332,586.46
  4. Step 4: Simplify right side
    647,907.94x = 323,326,351,644.29
  5. Step 5: Solve for x
    x = 323,326,351,644.29/647,907.94
  6. Step 6: Final answer
    x = 499,031.32

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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.