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Finding the Fourth Proportional to 630,466.71, 945,629.98 and 225,642.57

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Solution

The fourth proportional to 630,466.71, 945,629.98 and 225,642.57 is: 338,438.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,466.71 : 945,629.98 = 225,642.57 : x
  2. Step 2: Convert to fraction form
    630,466.71/945,629.98 = 225,642.57/x
  3. Step 3: Cross multiply
    630,466.71x = 945,629.98 × 225,642.57
  4. Step 4: Simplify right side
    630,466.71x = 213,374,376,115.27
  5. Step 5: Solve for x
    x = 213,374,376,115.27/630,466.71
  6. Step 6: Final answer
    x = 338,438.77

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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.