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Finding the Fourth Proportional to 1,048.99, 1,447.52 and 606.92

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Solution

The fourth proportional to 1,048.99, 1,447.52 and 606.92 is: 837.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,048.99 : 1,447.52 = 606.92 : x
  2. Step 2: Convert to fraction form
    1,048.99/1,447.52 = 606.92/x
  3. Step 3: Cross multiply
    1,048.99x = 1,447.52 × 606.92
  4. Step 4: Simplify right side
    1,048.99x = 878,518.57
  5. Step 5: Solve for x
    x = 878,518.57/1,048.99
  6. Step 6: Final answer
    x = 837.49

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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.