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Finding the Fourth Proportional to 613,493.38, 846,450.57 and 395,609.86

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Solution

The fourth proportional to 613,493.38, 846,450.57 and 395,609.86 is: 545,831.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,493.38 : 846,450.57 = 395,609.86 : x
  2. Step 2: Convert to fraction form
    613,493.38/846,450.57 = 395,609.86/x
  3. Step 3: Cross multiply
    613,493.38x = 846,450.57 × 395,609.86
  4. Step 4: Simplify right side
    613,493.38x = 334,864,191,494.62
  5. Step 5: Solve for x
    x = 334,864,191,494.62/613,493.38
  6. Step 6: Final answer
    x = 545,831.79

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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.