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Finding the Fourth Proportional to 510,186.80, 764,358.60 and 451,204.40

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Solution

The fourth proportional to 510,186.80, 764,358.60 and 451,204.40 is: 675,991.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,186.80 : 764,358.60 = 451,204.40 : x
  2. Step 2: Convert to fraction form
    510,186.80/764,358.60 = 451,204.40/x
  3. Step 3: Cross multiply
    510,186.80x = 764,358.60 × 451,204.40
  4. Step 4: Simplify right side
    510,186.80x = 344,881,963,497.84
  5. Step 5: Solve for x
    x = 344,881,963,497.84/510,186.80
  6. Step 6: Final answer
    x = 675,991.55

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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.