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Finding the Fourth Proportional to 608,475.10, 913,270.65 and 309,163.90

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Solution

The fourth proportional to 608,475.10, 913,270.65 and 309,163.90 is: 464,029.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,475.10 : 913,270.65 = 309,163.90 : x
  2. Step 2: Convert to fraction form
    608,475.10/913,270.65 = 309,163.90/x
  3. Step 3: Cross multiply
    608,475.10x = 913,270.65 × 309,163.90
  4. Step 4: Simplify right side
    608,475.10x = 282,350,315,909.54
  5. Step 5: Solve for x
    x = 282,350,315,909.54/608,475.10
  6. Step 6: Final answer
    x = 464,029.37

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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.