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Finding the Fourth Proportional to 451,498.60, 676,345.48 and 271,485.47

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Solution

The fourth proportional to 451,498.60, 676,345.48 and 271,485.47 is: 406,685.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,498.60 : 676,345.48 = 271,485.47 : x
  2. Step 2: Convert to fraction form
    451,498.60/676,345.48 = 271,485.47/x
  3. Step 3: Cross multiply
    451,498.60x = 676,345.48 × 271,485.47
  4. Step 4: Simplify right side
    451,498.60x = 183,617,967,138.45
  5. Step 5: Solve for x
    x = 183,617,967,138.45/451,498.60
  6. Step 6: Final answer
    x = 406,685.57

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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.