Home / 664,110.40-994,999.20-545,137.60

Finding the Fourth Proportional to 664,110.40, 994,999.20 and 545,137.60

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Solution

The fourth proportional to 664,110.40, 994,999.20 and 545,137.60 is: 816,748.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,110.40 : 994,999.20 = 545,137.60 : x
  2. Step 2: Convert to fraction form
    664,110.40/994,999.20 = 545,137.60/x
  3. Step 3: Cross multiply
    664,110.40x = 994,999.20 × 545,137.60
  4. Step 4: Simplify right side
    664,110.40x = 542,411,475,889.92
  5. Step 5: Solve for x
    x = 542,411,475,889.92/664,110.40
  6. Step 6: Final answer
    x = 816,748.96

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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.