Home / 649,099.24-972,778.53-505,178.83

Finding the Fourth Proportional to 649,099.24, 972,778.53 and 505,178.83

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Solution

The fourth proportional to 649,099.24, 972,778.53 and 505,178.83 is: 757,090.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,099.24 : 972,778.53 = 505,178.83 : x
  2. Step 2: Convert to fraction form
    649,099.24/972,778.53 = 505,178.83/x
  3. Step 3: Cross multiply
    649,099.24x = 972,778.53 × 505,178.83
  4. Step 4: Simplify right side
    649,099.24x = 491,427,122,153.87
  5. Step 5: Solve for x
    x = 491,427,122,153.87/649,099.24
  6. Step 6: Final answer
    x = 757,090.89

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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.