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Finding the Fourth Proportional to 578,814.93, 868,518.45 and 275,551.74

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Solution

The fourth proportional to 578,814.93, 868,518.45 and 275,551.74 is: 413,468.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,814.93 : 868,518.45 = 275,551.74 : x
  2. Step 2: Convert to fraction form
    578,814.93/868,518.45 = 275,551.74/x
  3. Step 3: Cross multiply
    578,814.93x = 868,518.45 × 275,551.74
  4. Step 4: Simplify right side
    578,814.93x = 239,321,770,119.60
  5. Step 5: Solve for x
    x = 239,321,770,119.60/578,814.93
  6. Step 6: Final answer
    x = 413,468.55

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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.