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Finding the Fourth Proportional to 520,180.48, 717,851.52 and 281,716.48

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Solution

The fourth proportional to 520,180.48, 717,851.52 and 281,716.48 is: 388,770.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,180.48 : 717,851.52 = 281,716.48 : x
  2. Step 2: Convert to fraction form
    520,180.48/717,851.52 = 281,716.48/x
  3. Step 3: Cross multiply
    520,180.48x = 717,851.52 × 281,716.48
  4. Step 4: Simplify right side
    520,180.48x = 202,230,603,377.05
  5. Step 5: Solve for x
    x = 202,230,603,377.05/520,180.48
  6. Step 6: Final answer
    x = 388,770.07

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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.