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Finding the Fourth Proportional to 1,224.60, 1,834.74 and 606.84

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Solution

The fourth proportional to 1,224.60, 1,834.74 and 606.84 is: 909.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224.60 : 1,834.74 = 606.84 : x
  2. Step 2: Convert to fraction form
    1,224.60/1,834.74 = 606.84/x
  3. Step 3: Cross multiply
    1,224.60x = 1,834.74 × 606.84
  4. Step 4: Simplify right side
    1,224.60x = 1,113,393.62
  5. Step 5: Solve for x
    x = 1,113,393.62/1,224.60
  6. Step 6: Final answer
    x = 909.19

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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.