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Finding the Fourth Proportional to 1,204.94, 1,807.85 and 474.11

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Solution

The fourth proportional to 1,204.94, 1,807.85 and 474.11 is: 711.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,204.94 : 1,807.85 = 474.11 : x
  2. Step 2: Convert to fraction form
    1,204.94/1,807.85 = 474.11/x
  3. Step 3: Cross multiply
    1,204.94x = 1,807.85 × 474.11
  4. Step 4: Simplify right side
    1,204.94x = 857,117.39
  5. Step 5: Solve for x
    x = 857,117.39/1,204.94
  6. Step 6: Final answer
    x = 711.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.