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Finding the Fourth Proportional to 1,426.67, 2,140.23 and 604.95

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Solution

The fourth proportional to 1,426.67, 2,140.23 and 604.95 is: 907.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426.67 : 2,140.23 = 604.95 : x
  2. Step 2: Convert to fraction form
    1,426.67/2,140.23 = 604.95/x
  3. Step 3: Cross multiply
    1,426.67x = 2,140.23 × 604.95
  4. Step 4: Simplify right side
    1,426.67x = 1,294,734.41
  5. Step 5: Solve for x
    x = 1,294,734.41/1,426.67
  6. Step 6: Final answer
    x = 907.52

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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.