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Finding the Fourth Proportional to 720,094.36, 993,727.10 and 397,804.44

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Solution

The fourth proportional to 720,094.36, 993,727.10 and 397,804.44 is: 548,968.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,094.36 : 993,727.10 = 397,804.44 : x
  2. Step 2: Convert to fraction form
    720,094.36/993,727.10 = 397,804.44/x
  3. Step 3: Cross multiply
    720,094.36x = 993,727.10 × 397,804.44
  4. Step 4: Simplify right side
    720,094.36x = 395,309,052,528.32
  5. Step 5: Solve for x
    x = 395,309,052,528.32/720,094.36
  6. Step 6: Final answer
    x = 548,968.41

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1.5x scale

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.