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Finding the Fourth Proportional to 895.38, 1,235.68 and 522.36

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Solution

The fourth proportional to 895.38, 1,235.68 and 522.36 is: 720.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    895.38 : 1,235.68 = 522.36 : x
  2. Step 2: Convert to fraction form
    895.38/1,235.68 = 522.36/x
  3. Step 3: Cross multiply
    895.38x = 1,235.68 × 522.36
  4. Step 4: Simplify right side
    895.38x = 645,469.80
  5. Step 5: Solve for x
    x = 645,469.80/895.38
  6. Step 6: Final answer
    x = 720.89

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Double scale
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1.5x scale

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.