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Finding the Fourth Proportional to 619.84, 844.45 and 607.19

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Solution

The fourth proportional to 619.84, 844.45 and 607.19 is: 827.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    619.84 : 844.45 = 607.19 : x
  2. Step 2: Convert to fraction form
    619.84/844.45 = 607.19/x
  3. Step 3: Cross multiply
    619.84x = 844.45 × 607.19
  4. Step 4: Simplify right side
    619.84x = 512,741.60
  5. Step 5: Solve for x
    x = 512,741.60/619.84
  6. Step 6: Final answer
    x = 827.22

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.