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Finding the Fourth Proportional to 1,304.23, 1,799.95 and 714.88

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Solution

The fourth proportional to 1,304.23, 1,799.95 and 714.88 is: 986.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,304.23 : 1,799.95 = 714.88 : x
  2. Step 2: Convert to fraction form
    1,304.23/1,799.95 = 714.88/x
  3. Step 3: Cross multiply
    1,304.23x = 1,799.95 × 714.88
  4. Step 4: Simplify right side
    1,304.23x = 1,286,737.92
  5. Step 5: Solve for x
    x = 1,286,737.92/1,304.23
  6. Step 6: Final answer
    x = 986.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.