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Finding the Fourth Proportional to 522,487.63, 783,953.36 and 285,553.52

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Solution

The fourth proportional to 522,487.63, 783,953.36 and 285,553.52 is: 428,451.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,487.63 : 783,953.36 = 285,553.52 : x
  2. Step 2: Convert to fraction form
    522,487.63/783,953.36 = 285,553.52/x
  3. Step 3: Cross multiply
    522,487.63x = 783,953.36 × 285,553.52
  4. Step 4: Simplify right side
    522,487.63x = 223,860,641,463.83
  5. Step 5: Solve for x
    x = 223,860,641,463.83/522,487.63
  6. Step 6: Final answer
    x = 428,451.56

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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.