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Finding the Fourth Proportional to 648.38, 895.38 and 590.06

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Solution

The fourth proportional to 648.38, 895.38 and 590.06 is: 814.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    648.38 : 895.38 = 590.06 : x
  2. Step 2: Convert to fraction form
    648.38/895.38 = 590.06/x
  3. Step 3: Cross multiply
    648.38x = 895.38 × 590.06
  4. Step 4: Simplify right side
    648.38x = 528,327.92
  5. Step 5: Solve for x
    x = 528,327.92/648.38
  6. Step 6: Final answer
    x = 814.84

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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.