Home / 1,304.20-1,799.79-706.69

Finding the Fourth Proportional to 1,304.20, 1,799.79 and 706.69

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Solution

The fourth proportional to 1,304.20, 1,799.79 and 706.69 is: 975.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,304.20 : 1,799.79 = 706.69 : x
  2. Step 2: Convert to fraction form
    1,304.20/1,799.79 = 706.69/x
  3. Step 3: Cross multiply
    1,304.20x = 1,799.79 × 706.69
  4. Step 4: Simplify right side
    1,304.20x = 1,271,893.19
  5. Step 5: Solve for x
    x = 1,271,893.19/1,304.20
  6. Step 6: Final answer
    x = 975.23

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Half scale
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Double scale
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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.