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Finding the Fourth Proportional to 802.08, 1,201.50 and 607.41

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Solution

The fourth proportional to 802.08, 1,201.50 and 607.41 is: 909.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    802.08 : 1,201.50 = 607.41 : x
  2. Step 2: Convert to fraction form
    802.08/1,201.50 = 607.41/x
  3. Step 3: Cross multiply
    802.08x = 1,201.50 × 607.41
  4. Step 4: Simplify right side
    802.08x = 729,803.12
  5. Step 5: Solve for x
    x = 729,803.12/802.08
  6. Step 6: Final answer
    x = 909.89

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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.