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Finding the Fourth Proportional to 1,304.25, 1,799.85 and 714.77

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Solution

The fourth proportional to 1,304.25, 1,799.85 and 714.77 is: 986.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,304.25 : 1,799.85 = 714.77 : x
  2. Step 2: Convert to fraction form
    1,304.25/1,799.85 = 714.77/x
  3. Step 3: Cross multiply
    1,304.25x = 1,799.85 × 714.77
  4. Step 4: Simplify right side
    1,304.25x = 1,286,473.85
  5. Step 5: Solve for x
    x = 1,286,473.85/1,304.25
  6. Step 6: Final answer
    x = 986.37

Related Problems

Find fourth proportional to 652.12, 899.92 and 357.38
Half scale
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Double scale
Find fourth proportional to 1,305.25, 1,801.23 and 715.77
Similar ratio
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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.