Home / 649,102.19-972,782.94-505,181.78

Finding the Fourth Proportional to 649,102.19, 972,782.94 and 505,181.78

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Solution

The fourth proportional to 649,102.19, 972,782.94 and 505,181.78 is: 757,095.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,102.19 : 972,782.94 = 505,181.78 : x
  2. Step 2: Convert to fraction form
    649,102.19/972,782.94 = 505,181.78/x
  3. Step 3: Cross multiply
    649,102.19x = 972,782.94 × 505,181.78
  4. Step 4: Simplify right side
    649,102.19x = 491,432,214,072.42
  5. Step 5: Solve for x
    x = 491,432,214,072.42/649,102.19
  6. Step 6: Final answer
    x = 757,095.30

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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.