Home / 720,134.33-993,777.89-397,823.38

Finding the Fourth Proportional to 720,134.33, 993,777.89 and 397,823.38

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Solution

The fourth proportional to 720,134.33, 993,777.89 and 397,823.38 is: 548,992.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,134.33 : 993,777.89 = 397,823.38 : x
  2. Step 2: Convert to fraction form
    720,134.33/993,777.89 = 397,823.38/x
  3. Step 3: Cross multiply
    720,134.33x = 993,777.89 × 397,823.38
  4. Step 4: Simplify right side
    720,134.33x = 395,348,074,695.51
  5. Step 5: Solve for x
    x = 395,348,074,695.51/720,134.33
  6. Step 6: Final answer
    x = 548,992.13

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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.