Home / 820,491.89-1,230,100.56-531,693.45

Finding the Fourth Proportional to 820,491.89, 1,230,100.56 and 531,693.45

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Solution

The fourth proportional to 820,491.89, 1,230,100.56 and 531,693.45 is: 797,127.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,491.89 : 1,230,100.56 = 531,693.45 : x
  2. Step 2: Convert to fraction form
    820,491.89/1,230,100.56 = 531,693.45/x
  3. Step 3: Cross multiply
    820,491.89x = 1,230,100.56 × 531,693.45
  4. Step 4: Simplify right side
    820,491.89x = 654,036,410,593.33
  5. Step 5: Solve for x
    x = 654,036,410,593.33/820,491.89
  6. Step 6: Final answer
    x = 797,127.21

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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.