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Finding the Fourth Proportional to 608,858.48, 913,268.89 and 289,240.44

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Solution

The fourth proportional to 608,858.48, 913,268.89 and 289,240.44 is: 433,851.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,858.48 : 913,268.89 = 289,240.44 : x
  2. Step 2: Convert to fraction form
    608,858.48/913,268.89 = 289,240.44/x
  3. Step 3: Cross multiply
    608,858.48x = 913,268.89 × 289,240.44
  4. Step 4: Simplify right side
    608,858.48x = 264,154,292,518.70
  5. Step 5: Solve for x
    x = 264,154,292,518.70/608,858.48
  6. Step 6: Final answer
    x = 433,851.71

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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.