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Finding the Fourth Proportional to 515,028.20, 770,792.70 and 452,042.60

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Solution

The fourth proportional to 515,028.20, 770,792.70 and 452,042.60 is: 676,528.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,028.20 : 770,792.70 = 452,042.60 : x
  2. Step 2: Convert to fraction form
    515,028.20/770,792.70 = 452,042.60/x
  3. Step 3: Cross multiply
    515,028.20x = 770,792.70 × 452,042.60
  4. Step 4: Simplify right side
    515,028.20x = 348,431,136,169.02
  5. Step 5: Solve for x
    x = 348,431,136,169.02/515,028.20
  6. Step 6: Final answer
    x = 676,528.27

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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.