Home / 820,655.64-1,132,693.74-481,233.24

Finding the Fourth Proportional to 820,655.64, 1,132,693.74 and 481,233.24

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Solution

The fourth proportional to 820,655.64, 1,132,693.74 and 481,233.24 is: 664,212.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,655.64 : 1,132,693.74 = 481,233.24 : x
  2. Step 2: Convert to fraction form
    820,655.64/1,132,693.74 = 481,233.24/x
  3. Step 3: Cross multiply
    820,655.64x = 1,132,693.74 × 481,233.24
  4. Step 4: Simplify right side
    820,655.64x = 545,089,878,427.92
  5. Step 5: Solve for x
    x = 545,089,878,427.92/820,655.64
  6. Step 6: Final answer
    x = 664,212.68

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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.