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Finding the Fourth Proportional to 342,527.60, 513,791.40 and 328,530.80

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Solution

The fourth proportional to 342,527.60, 513,791.40 and 328,530.80 is: 492,796.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,527.60 : 513,791.40 = 328,530.80 : x
  2. Step 2: Convert to fraction form
    342,527.60/513,791.40 = 328,530.80/x
  3. Step 3: Cross multiply
    342,527.60x = 513,791.40 × 328,530.80
  4. Step 4: Simplify right side
    342,527.60x = 168,796,299,675.12
  5. Step 5: Solve for x
    x = 168,796,299,675.12/342,527.60
  6. Step 6: Final answer
    x = 492,796.20

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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.