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Finding the Fourth Proportional to 1,047.84, 1,446.96 and 654.96

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Solution

The fourth proportional to 1,047.84, 1,446.96 and 654.96 is: 904.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,047.84 : 1,446.96 = 654.96 : x
  2. Step 2: Convert to fraction form
    1,047.84/1,446.96 = 654.96/x
  3. Step 3: Cross multiply
    1,047.84x = 1,446.96 × 654.96
  4. Step 4: Simplify right side
    1,047.84x = 947,700.92
  5. Step 5: Solve for x
    x = 947,700.92/1,047.84
  6. Step 6: Final answer
    x = 904.43

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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.