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Finding the Fourth Proportional to 499,847.67, 689,072.27 and 356,358.60

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Solution

The fourth proportional to 499,847.67, 689,072.27 and 356,358.60 is: 491,263.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,847.67 : 689,072.27 = 356,358.60 : x
  2. Step 2: Convert to fraction form
    499,847.67/689,072.27 = 356,358.60/x
  3. Step 3: Cross multiply
    499,847.67x = 689,072.27 × 356,358.60
  4. Step 4: Simplify right side
    499,847.67x = 245,556,827,654.23
  5. Step 5: Solve for x
    x = 245,556,827,654.23/499,847.67
  6. Step 6: Final answer
    x = 491,263.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.