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Finding the Fourth Proportional to 520,899, 780,831.20 and 295,793.52

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Solution

The fourth proportional to 520,899, 780,831.20 and 295,793.52 is: 443,396.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,899 : 780,831.20 = 295,793.52 : x
  2. Step 2: Convert to fraction form
    520,899/780,831.20 = 295,793.52/x
  3. Step 3: Cross multiply
    520,899x = 780,831.20 × 295,793.52
  4. Step 4: Simplify right side
    520,899x = 230,964,809,173.82
  5. Step 5: Solve for x
    x = 230,964,809,173.82/520,899
  6. Step 6: Final answer
    x = 443,396.53

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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.