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Finding the Fourth Proportional to 969.13, 1,453.80 and 603.62

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Solution

The fourth proportional to 969.13, 1,453.80 and 603.62 is: 905.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    969.13 : 1,453.80 = 603.62 : x
  2. Step 2: Convert to fraction form
    969.13/1,453.80 = 603.62/x
  3. Step 3: Cross multiply
    969.13x = 1,453.80 × 603.62
  4. Step 4: Simplify right side
    969.13x = 877,539.81
  5. Step 5: Solve for x
    x = 877,539.81/969.13
  6. Step 6: Final answer
    x = 905.49

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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.