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Finding the Fourth Proportional to 1,306.30, 1,804.08 and 888.52

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Solution

The fourth proportional to 1,306.30, 1,804.08 and 888.52 is: 1,227.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,306.30 : 1,804.08 = 888.52 : x
  2. Step 2: Convert to fraction form
    1,306.30/1,804.08 = 888.52/x
  3. Step 3: Cross multiply
    1,306.30x = 1,804.08 × 888.52
  4. Step 4: Simplify right side
    1,306.30x = 1,602,961.16
  5. Step 5: Solve for x
    x = 1,602,961.16/1,306.30
  6. Step 6: Final answer
    x = 1,227.10

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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.