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Finding the Fourth Proportional to 532,452.78, 734,814.72 and 290,757.87

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Solution

The fourth proportional to 532,452.78, 734,814.72 and 290,757.87 is: 401,262.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,452.78 : 734,814.72 = 290,757.87 : x
  2. Step 2: Convert to fraction form
    532,452.78/734,814.72 = 290,757.87/x
  3. Step 3: Cross multiply
    532,452.78x = 734,814.72 × 290,757.87
  4. Step 4: Simplify right side
    532,452.78x = 213,653,162,831.85
  5. Step 5: Solve for x
    x = 213,653,162,831.85/532,452.78
  6. Step 6: Final answer
    x = 401,262.18

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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.