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Finding the Fourth Proportional to 1,051.25, 1,450.98 and 609.41

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Solution

The fourth proportional to 1,051.25, 1,450.98 and 609.41 is: 841.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,051.25 : 1,450.98 = 609.41 : x
  2. Step 2: Convert to fraction form
    1,051.25/1,450.98 = 609.41/x
  3. Step 3: Cross multiply
    1,051.25x = 1,450.98 × 609.41
  4. Step 4: Simplify right side
    1,051.25x = 884,245.35
  5. Step 5: Solve for x
    x = 884,245.35/1,051.25
  6. Step 6: Final answer
    x = 841.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.