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Finding the Fourth Proportional to 1,048.60, 1,447.08 and 582.82

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Solution

The fourth proportional to 1,048.60, 1,447.08 and 582.82 is: 804.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,048.60 : 1,447.08 = 582.82 : x
  2. Step 2: Convert to fraction form
    1,048.60/1,447.08 = 582.82/x
  3. Step 3: Cross multiply
    1,048.60x = 1,447.08 × 582.82
  4. Step 4: Simplify right side
    1,048.60x = 843,387.17
  5. Step 5: Solve for x
    x = 843,387.17/1,048.60
  6. Step 6: Final answer
    x = 804.30

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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.