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Finding the Fourth Proportional to 1,051.13, 1,450.26 and 603

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Solution

The fourth proportional to 1,051.13, 1,450.26 and 603 is: 831.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,051.13 : 1,450.26 = 603 : x
  2. Step 2: Convert to fraction form
    1,051.13/1,450.26 = 603/x
  3. Step 3: Cross multiply
    1,051.13x = 1,450.26 × 603
  4. Step 4: Simplify right side
    1,051.13x = 874,506.78
  5. Step 5: Solve for x
    x = 874,506.78/1,051.13
  6. Step 6: Final answer
    x = 831.97

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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.