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Finding the Fourth Proportional to 1,478.95, 2,217.61 and 504.52

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Solution

The fourth proportional to 1,478.95, 2,217.61 and 504.52 is: 756.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478.95 : 2,217.61 = 504.52 : x
  2. Step 2: Convert to fraction form
    1,478.95/2,217.61 = 504.52/x
  3. Step 3: Cross multiply
    1,478.95x = 2,217.61 × 504.52
  4. Step 4: Simplify right side
    1,478.95x = 1,118,828.60
  5. Step 5: Solve for x
    x = 1,118,828.60/1,478.95
  6. Step 6: Final answer
    x = 756.50

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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.