Home / 723,005-1,085,157.96-386,333.44

Finding the Fourth Proportional to 723,005, 1,085,157.96 and 386,333.44

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Solution

The fourth proportional to 723,005, 1,085,157.96 and 386,333.44 is: 579,847.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,005 : 1,085,157.96 = 386,333.44 : x
  2. Step 2: Convert to fraction form
    723,005/1,085,157.96 = 386,333.44/x
  3. Step 3: Cross multiply
    723,005x = 1,085,157.96 × 386,333.44
  4. Step 4: Simplify right side
    723,005x = 419,232,807,630.18
  5. Step 5: Solve for x
    x = 419,232,807,630.18/723,005
  6. Step 6: Final answer
    x = 579,847.73

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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.