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Finding the Fourth Proportional to 608,884.86, 913,308.39 and 289,266.75

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Solution

The fourth proportional to 608,884.86, 913,308.39 and 289,266.75 is: 433,891.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,884.86 : 913,308.39 = 289,266.75 : x
  2. Step 2: Convert to fraction form
    608,884.86/913,308.39 = 289,266.75/x
  3. Step 3: Cross multiply
    608,884.86x = 913,308.39 × 289,266.75
  4. Step 4: Simplify right side
    608,884.86x = 264,189,749,723.03
  5. Step 5: Solve for x
    x = 264,189,749,723.03/608,884.86
  6. Step 6: Final answer
    x = 433,891.15

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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.