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Finding the Fourth Proportional to 510,330.78, 763,627.57 and 482,956.43

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Solution

The fourth proportional to 510,330.78, 763,627.57 and 482,956.43 is: 722,666.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,330.78 : 763,627.57 = 482,956.43 : x
  2. Step 2: Convert to fraction form
    510,330.78/763,627.57 = 482,956.43/x
  3. Step 3: Cross multiply
    510,330.78x = 763,627.57 × 482,956.43
  4. Step 4: Simplify right side
    510,330.78x = 368,798,840,031.25
  5. Step 5: Solve for x
    x = 368,798,840,031.25/510,330.78
  6. Step 6: Final answer
    x = 722,666.27

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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.