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Finding the Fourth Proportional to 644,494, 966,741.40 and 245,042.50

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Solution

The fourth proportional to 644,494, 966,741.40 and 245,042.50 is: 367,563.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,494 : 966,741.40 = 245,042.50 : x
  2. Step 2: Convert to fraction form
    644,494/966,741.40 = 245,042.50/x
  3. Step 3: Cross multiply
    644,494x = 966,741.40 × 245,042.50
  4. Step 4: Simplify right side
    644,494x = 236,892,729,509.50
  5. Step 5: Solve for x
    x = 236,892,729,509.50/644,494
  6. Step 6: Final answer
    x = 367,563.90

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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.