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Finding the Fourth Proportional to 608,886.36, 913,310.64 and 289,268.25

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Solution

The fourth proportional to 608,886.36, 913,310.64 and 289,268.25 is: 433,893.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,886.36 : 913,310.64 = 289,268.25 : x
  2. Step 2: Convert to fraction form
    608,886.36/913,310.64 = 289,268.25/x
  3. Step 3: Cross multiply
    608,886.36x = 913,310.64 × 289,268.25
  4. Step 4: Simplify right side
    608,886.36x = 264,191,770,539.18
  5. Step 5: Solve for x
    x = 264,191,770,539.18/608,886.36
  6. Step 6: Final answer
    x = 433,893.40

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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.