Home / 816,820.80-1,222,898.40-501,892.80

Finding the Fourth Proportional to 816,820.80, 1,222,898.40 and 501,892.80

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Solution

The fourth proportional to 816,820.80, 1,222,898.40 and 501,892.80 is: 751,405.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,820.80 : 1,222,898.40 = 501,892.80 : x
  2. Step 2: Convert to fraction form
    816,820.80/1,222,898.40 = 501,892.80/x
  3. Step 3: Cross multiply
    816,820.80x = 1,222,898.40 × 501,892.80
  4. Step 4: Simplify right side
    816,820.80x = 613,763,902,091.52
  5. Step 5: Solve for x
    x = 613,763,902,091.52/816,820.80
  6. Step 6: Final answer
    x = 751,405.82

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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.