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Finding the Fourth Proportional to 397,942, 549,626.52 and 263,572.72

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Solution

The fourth proportional to 397,942, 549,626.52 and 263,572.72 is: 364,039.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,942 : 549,626.52 = 263,572.72 : x
  2. Step 2: Convert to fraction form
    397,942/549,626.52 = 263,572.72/x
  3. Step 3: Cross multiply
    397,942x = 549,626.52 × 263,572.72
  4. Step 4: Simplify right side
    397,942x = 144,866,556,860.53
  5. Step 5: Solve for x
    x = 144,866,556,860.53/397,942
  6. Step 6: Final answer
    x = 364,039.37

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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.