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Finding the Fourth Proportional to 489,516.44, 734,495 and 264,613.56

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Solution

The fourth proportional to 489,516.44, 734,495 and 264,613.56 is: 397,039.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,516.44 : 734,495 = 264,613.56 : x
  2. Step 2: Convert to fraction form
    489,516.44/734,495 = 264,613.56/x
  3. Step 3: Cross multiply
    489,516.44x = 734,495 × 264,613.56
  4. Step 4: Simplify right side
    489,516.44x = 194,357,336,752.20
  5. Step 5: Solve for x
    x = 194,357,336,752.20/489,516.44
  6. Step 6: Final answer
    x = 397,039.45

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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.