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Finding the Fourth Proportional to 504,880.74, 756,890.64 and 220,358.55

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Solution

The fourth proportional to 504,880.74, 756,890.64 and 220,358.55 is: 330,349.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,880.74 : 756,890.64 = 220,358.55 : x
  2. Step 2: Convert to fraction form
    504,880.74/756,890.64 = 220,358.55/x
  3. Step 3: Cross multiply
    504,880.74x = 756,890.64 × 220,358.55
  4. Step 4: Simplify right side
    504,880.74x = 166,787,326,777.31
  5. Step 5: Solve for x
    x = 166,787,326,777.31/504,880.74
  6. Step 6: Final answer
    x = 330,349.95

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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.