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Finding the Fourth Proportional to 664,212.45, 994,842.45 and 546,114.45

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Solution

The fourth proportional to 664,212.45, 994,842.45 and 546,114.45 is: 817,957.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,212.45 : 994,842.45 = 546,114.45 : x
  2. Step 2: Convert to fraction form
    664,212.45/994,842.45 = 546,114.45/x
  3. Step 3: Cross multiply
    664,212.45x = 994,842.45 × 546,114.45
  4. Step 4: Simplify right side
    664,212.45x = 543,297,837,418.40
  5. Step 5: Solve for x
    x = 543,297,837,418.40/664,212.45
  6. Step 6: Final answer
    x = 817,957.93

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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.