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Finding the Fourth Proportional to 1,578.80, 2,368.14 and 604.85

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Solution

The fourth proportional to 1,578.80, 2,368.14 and 604.85 is: 907.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578.80 : 2,368.14 = 604.85 : x
  2. Step 2: Convert to fraction form
    1,578.80/2,368.14 = 604.85/x
  3. Step 3: Cross multiply
    1,578.80x = 2,368.14 × 604.85
  4. Step 4: Simplify right side
    1,578.80x = 1,432,355.37
  5. Step 5: Solve for x
    x = 1,432,355.37/1,578.80
  6. Step 6: Final answer
    x = 907.24

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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.