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Finding the Fourth Proportional to 608,578.20, 912,672.90 and 253,506.60

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Solution

The fourth proportional to 608,578.20, 912,672.90 and 253,506.60 is: 380,178.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,578.20 : 912,672.90 = 253,506.60 : x
  2. Step 2: Convert to fraction form
    608,578.20/912,672.90 = 253,506.60/x
  3. Step 3: Cross multiply
    608,578.20x = 912,672.90 × 253,506.60
  4. Step 4: Simplify right side
    608,578.20x = 231,368,603,791.14
  5. Step 5: Solve for x
    x = 231,368,603,791.14/608,578.20
  6. Step 6: Final answer
    x = 380,178.92

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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.