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Finding the Fourth Proportional to 512,116.80, 768,175.20 and 325,262.40

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Solution

The fourth proportional to 512,116.80, 768,175.20 and 325,262.40 is: 487,893.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,116.80 : 768,175.20 = 325,262.40 : x
  2. Step 2: Convert to fraction form
    512,116.80/768,175.20 = 325,262.40/x
  3. Step 3: Cross multiply
    512,116.80x = 768,175.20 × 325,262.40
  4. Step 4: Simplify right side
    512,116.80x = 249,858,509,172.48
  5. Step 5: Solve for x
    x = 249,858,509,172.48/512,116.80
  6. Step 6: Final answer
    x = 487,893.60

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1.5x scale

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.