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Finding the Fourth Proportional to 554.65, 764.91 and 444.08

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Solution

The fourth proportional to 554.65, 764.91 and 444.08 is: 612.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.65 : 764.91 = 444.08 : x
  2. Step 2: Convert to fraction form
    554.65/764.91 = 444.08/x
  3. Step 3: Cross multiply
    554.65x = 764.91 × 444.08
  4. Step 4: Simplify right side
    554.65x = 339,681.23
  5. Step 5: Solve for x
    x = 339,681.23/554.65
  6. Step 6: Final answer
    x = 612.42

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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.