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Finding the Fourth Proportional to 633,980.09, 949,392.67 and 443,548.89

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Solution

The fourth proportional to 633,980.09, 949,392.67 and 443,548.89 is: 664,219.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,980.09 : 949,392.67 = 443,548.89 : x
  2. Step 2: Convert to fraction form
    633,980.09/949,392.67 = 443,548.89/x
  3. Step 3: Cross multiply
    633,980.09x = 949,392.67 × 443,548.89
  4. Step 4: Simplify right side
    633,980.09x = 421,102,064,952.64
  5. Step 5: Solve for x
    x = 421,102,064,952.64/633,980.09
  6. Step 6: Final answer
    x = 664,219.70

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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.