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Finding the Fourth Proportional to 518,572.74, 777,883.75 and 252,015.71

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Solution

The fourth proportional to 518,572.74, 777,883.75 and 252,015.71 is: 378,035.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,572.74 : 777,883.75 = 252,015.71 : x
  2. Step 2: Convert to fraction form
    518,572.74/777,883.75 = 252,015.71/x
  3. Step 3: Cross multiply
    518,572.74x = 777,883.75 × 252,015.71
  4. Step 4: Simplify right side
    518,572.74x = 196,038,926,868.38
  5. Step 5: Solve for x
    x = 196,038,926,868.38/518,572.74
  6. Step 6: Final answer
    x = 378,035.54

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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.