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Finding the Fourth Proportional to 1,045.76, 1,566.81 and 994.73

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Solution

The fourth proportional to 1,045.76, 1,566.81 and 994.73 is: 1,490.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,045.76 : 1,566.81 = 994.73 : x
  2. Step 2: Convert to fraction form
    1,045.76/1,566.81 = 994.73/x
  3. Step 3: Cross multiply
    1,045.76x = 1,566.81 × 994.73
  4. Step 4: Simplify right side
    1,045.76x = 1,558,545.08
  5. Step 5: Solve for x
    x = 1,558,545.08/1,045.76
  6. Step 6: Final answer
    x = 1,490.35

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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.