Home / 722,484.52-996,984.78-400,175.80

Finding the Fourth Proportional to 722,484.52, 996,984.78 and 400,175.80

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Solution

The fourth proportional to 722,484.52, 996,984.78 and 400,175.80 is: 552,218.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,484.52 : 996,984.78 = 400,175.80 : x
  2. Step 2: Convert to fraction form
    722,484.52/996,984.78 = 400,175.80/x
  3. Step 3: Cross multiply
    722,484.52x = 996,984.78 × 400,175.80
  4. Step 4: Simplify right side
    722,484.52x = 398,969,181,924.32
  5. Step 5: Solve for x
    x = 398,969,181,924.32/722,484.52
  6. Step 6: Final answer
    x = 552,218.31

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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.