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Finding the Fourth Proportional to 540,092.50, 745,318.83 and 298,385.26

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Solution

The fourth proportional to 540,092.50, 745,318.83 and 298,385.26 is: 411,766.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,092.50 : 745,318.83 = 298,385.26 : x
  2. Step 2: Convert to fraction form
    540,092.50/745,318.83 = 298,385.26/x
  3. Step 3: Cross multiply
    540,092.50x = 745,318.83 × 298,385.26
  4. Step 4: Simplify right side
    540,092.50x = 222,392,152,872.45
  5. Step 5: Solve for x
    x = 222,392,152,872.45/540,092.50
  6. Step 6: Final answer
    x = 411,766.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.