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Finding the Fourth Proportional to 1,010.10, 1,393.92 and 590.54

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Solution

The fourth proportional to 1,010.10, 1,393.92 and 590.54 is: 814.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010.10 : 1,393.92 = 590.54 : x
  2. Step 2: Convert to fraction form
    1,010.10/1,393.92 = 590.54/x
  3. Step 3: Cross multiply
    1,010.10x = 1,393.92 × 590.54
  4. Step 4: Simplify right side
    1,010.10x = 823,165.52
  5. Step 5: Solve for x
    x = 823,165.52/1,010.10
  6. Step 6: Final answer
    x = 814.93

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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.