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Finding the Fourth Proportional to 1,304.95, 1,957.15 and 483.25

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Solution

The fourth proportional to 1,304.95, 1,957.15 and 483.25 is: 724.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,304.95 : 1,957.15 = 483.25 : x
  2. Step 2: Convert to fraction form
    1,304.95/1,957.15 = 483.25/x
  3. Step 3: Cross multiply
    1,304.95x = 1,957.15 × 483.25
  4. Step 4: Simplify right side
    1,304.95x = 945,792.74
  5. Step 5: Solve for x
    x = 945,792.74/1,304.95
  6. Step 6: Final answer
    x = 724.77

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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.