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Finding the Fourth Proportional to 804.02, 1,203.95 and 680.99

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Solution

The fourth proportional to 804.02, 1,203.95 and 680.99 is: 1,019.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    804.02 : 1,203.95 = 680.99 : x
  2. Step 2: Convert to fraction form
    804.02/1,203.95 = 680.99/x
  3. Step 3: Cross multiply
    804.02x = 1,203.95 × 680.99
  4. Step 4: Simplify right side
    804.02x = 819,873.59
  5. Step 5: Solve for x
    x = 819,873.59/804.02
  6. Step 6: Final answer
    x = 1,019.72

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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.