Home / 720,195.02-993,879.56-397,912.54

Finding the Fourth Proportional to 720,195.02, 993,879.56 and 397,912.54

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Solution

The fourth proportional to 720,195.02, 993,879.56 and 397,912.54 is: 549,125.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,195.02 : 993,879.56 = 397,912.54 : x
  2. Step 2: Convert to fraction form
    720,195.02/993,879.56 = 397,912.54/x
  3. Step 3: Cross multiply
    720,195.02x = 993,879.56 × 397,912.54
  4. Step 4: Simplify right side
    720,195.02x = 395,477,140,173.68
  5. Step 5: Solve for x
    x = 395,477,140,173.68/720,195.02
  6. Step 6: Final answer
    x = 549,125.07

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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.