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Finding the Fourth Proportional to 551,687.40, 828,308.70 and 341,735.40

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Solution

The fourth proportional to 551,687.40, 828,308.70 and 341,735.40 is: 513,084.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,687.40 : 828,308.70 = 341,735.40 : x
  2. Step 2: Convert to fraction form
    551,687.40/828,308.70 = 341,735.40/x
  3. Step 3: Cross multiply
    551,687.40x = 828,308.70 × 341,735.40
  4. Step 4: Simplify right side
    551,687.40x = 283,062,404,917.98
  5. Step 5: Solve for x
    x = 283,062,404,917.98/551,687.40
  6. Step 6: Final answer
    x = 513,084.77

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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.