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Finding the Fourth Proportional to 522,488.64, 783,954.86 and 285,554.52

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Solution

The fourth proportional to 522,488.64, 783,954.86 and 285,554.52 is: 428,453.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,488.64 : 783,954.86 = 285,554.52 : x
  2. Step 2: Convert to fraction form
    522,488.64/783,954.86 = 285,554.52/x
  3. Step 3: Cross multiply
    522,488.64x = 783,954.86 × 285,554.52
  4. Step 4: Simplify right side
    522,488.64x = 223,861,853,748.97
  5. Step 5: Solve for x
    x = 223,861,853,748.97/522,488.64
  6. Step 6: Final answer
    x = 428,453.05

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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.