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Finding the Fourth Proportional to 802.04, 1,203.43 and 436.28

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Solution

The fourth proportional to 802.04, 1,203.43 and 436.28 is: 654.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    802.04 : 1,203.43 = 436.28 : x
  2. Step 2: Convert to fraction form
    802.04/1,203.43 = 436.28/x
  3. Step 3: Cross multiply
    802.04x = 1,203.43 × 436.28
  4. Step 4: Simplify right side
    802.04x = 525,034.36
  5. Step 5: Solve for x
    x = 525,034.36/802.04
  6. Step 6: Final answer
    x = 654.62

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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.