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Finding the Fourth Proportional to 1,054.38, 1,455.05 and 588.63

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Solution

The fourth proportional to 1,054.38, 1,455.05 and 588.63 is: 812.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,054.38 : 1,455.05 = 588.63 : x
  2. Step 2: Convert to fraction form
    1,054.38/1,455.05 = 588.63/x
  3. Step 3: Cross multiply
    1,054.38x = 1,455.05 × 588.63
  4. Step 4: Simplify right side
    1,054.38x = 856,486.08
  5. Step 5: Solve for x
    x = 856,486.08/1,054.38
  6. Step 6: Final answer
    x = 812.31

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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.