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Finding the Fourth Proportional to 1,252.40, 1,879.02 and 603.19

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Solution

The fourth proportional to 1,252.40, 1,879.02 and 603.19 is: 904.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252.40 : 1,879.02 = 603.19 : x
  2. Step 2: Convert to fraction form
    1,252.40/1,879.02 = 603.19/x
  3. Step 3: Cross multiply
    1,252.40x = 1,879.02 × 603.19
  4. Step 4: Simplify right side
    1,252.40x = 1,133,406.07
  5. Step 5: Solve for x
    x = 1,133,406.07/1,252.40
  6. Step 6: Final answer
    x = 904.99

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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.