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Finding the Fourth Proportional to 608,517.51, 913,224.72 and 288,670.38

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Solution

The fourth proportional to 608,517.51, 913,224.72 and 288,670.38 is: 433,218.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,517.51 : 913,224.72 = 288,670.38 : x
  2. Step 2: Convert to fraction form
    608,517.51/913,224.72 = 288,670.38/x
  3. Step 3: Cross multiply
    608,517.51x = 913,224.72 × 288,670.38
  4. Step 4: Simplify right side
    608,517.51x = 263,620,926,947.79
  5. Step 5: Solve for x
    x = 263,620,926,947.79/608,517.51
  6. Step 6: Final answer
    x = 433,218.31

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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.