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Finding the Fourth Proportional to 1,303.04, 1,954.56 and 654.32

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Solution

The fourth proportional to 1,303.04, 1,954.56 and 654.32 is: 981.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,303.04 : 1,954.56 = 654.32 : x
  2. Step 2: Convert to fraction form
    1,303.04/1,954.56 = 654.32/x
  3. Step 3: Cross multiply
    1,303.04x = 1,954.56 × 654.32
  4. Step 4: Simplify right side
    1,303.04x = 1,278,907.70
  5. Step 5: Solve for x
    x = 1,278,907.70/1,303.04
  6. Step 6: Final answer
    x = 981.48

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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.