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Finding the Fourth Proportional to 648.77, 895.46 and 369.17

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Solution

The fourth proportional to 648.77, 895.46 and 369.17 is: 509.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    648.77 : 895.46 = 369.17 : x
  2. Step 2: Convert to fraction form
    648.77/895.46 = 369.17/x
  3. Step 3: Cross multiply
    648.77x = 895.46 × 369.17
  4. Step 4: Simplify right side
    648.77x = 330,570.65
  5. Step 5: Solve for x
    x = 330,570.65/648.77
  6. Step 6: Final answer
    x = 509.54

Related Problems

Find fourth proportional to 324.38, 447.73 and 184.58
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Double scale
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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.