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Finding the Fourth Proportional to 1,047.91, 1,446.15 and 582.16

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Solution

The fourth proportional to 1,047.91, 1,446.15 and 582.16 is: 803.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,047.91 : 1,446.15 = 582.16 : x
  2. Step 2: Convert to fraction form
    1,047.91/1,446.15 = 582.16/x
  3. Step 3: Cross multiply
    1,047.91x = 1,446.15 × 582.16
  4. Step 4: Simplify right side
    1,047.91x = 841,890.68
  5. Step 5: Solve for x
    x = 841,890.68/1,047.91
  6. Step 6: Final answer
    x = 803.40

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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.