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Finding the Fourth Proportional to 608,513.00, 913,217.97 and 288,665.87

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Solution

The fourth proportional to 608,513.00, 913,217.97 and 288,665.87 is: 433,211.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,513.00 : 913,217.97 = 288,665.87 : x
  2. Step 2: Convert to fraction form
    608,513.00/913,217.97 = 288,665.87/x
  3. Step 3: Cross multiply
    608,513.00x = 913,217.97 × 288,665.87
  4. Step 4: Simplify right side
    608,513.00x = 263,614,855,243.59
  5. Step 5: Solve for x
    x = 263,614,855,243.59/608,513.00
  6. Step 6: Final answer
    x = 433,211.55

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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.