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Finding the Fourth Proportional to 342,486.60, 513,729.90 and 332,645.10

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Solution

The fourth proportional to 342,486.60, 513,729.90 and 332,645.10 is: 498,967.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,486.60 : 513,729.90 = 332,645.10 : x
  2. Step 2: Convert to fraction form
    342,486.60/513,729.90 = 332,645.10/x
  3. Step 3: Cross multiply
    342,486.60x = 513,729.90 × 332,645.10
  4. Step 4: Simplify right side
    342,486.60x = 170,889,733,958.49
  5. Step 5: Solve for x
    x = 170,889,733,958.49/342,486.60
  6. Step 6: Final answer
    x = 498,967.65

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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.