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Finding the Fourth Proportional to 492,347.37, 738,613.70 and 339,120.07

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Solution

The fourth proportional to 492,347.37, 738,613.70 and 339,120.07 is: 508,743.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,347.37 : 738,613.70 = 339,120.07 : x
  2. Step 2: Convert to fraction form
    492,347.37/738,613.70 = 339,120.07/x
  3. Step 3: Cross multiply
    492,347.37x = 738,613.70 × 339,120.07
  4. Step 4: Simplify right side
    492,347.37x = 250,478,729,797.89
  5. Step 5: Solve for x
    x = 250,478,729,797.89/492,347.37
  6. Step 6: Final answer
    x = 508,743.92

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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.