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Finding the Fourth Proportional to 630,672.08, 945,445.64 and 231,219.77

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Solution

The fourth proportional to 630,672.08, 945,445.64 and 231,219.77 is: 346,623.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,672.08 : 945,445.64 = 231,219.77 : x
  2. Step 2: Convert to fraction form
    630,672.08/945,445.64 = 231,219.77/x
  3. Step 3: Cross multiply
    630,672.08x = 945,445.64 × 231,219.77
  4. Step 4: Simplify right side
    630,672.08x = 218,605,717,544.98
  5. Step 5: Solve for x
    x = 218,605,717,544.98/630,672.08
  6. Step 6: Final answer
    x = 346,623.43

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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.