Home / 830,863.40-1,246,230.30-325,326.20

Finding the Fourth Proportional to 830,863.40, 1,246,230.30 and 325,326.20

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Solution

The fourth proportional to 830,863.40, 1,246,230.30 and 325,326.20 is: 487,963.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,863.40 : 1,246,230.30 = 325,326.20 : x
  2. Step 2: Convert to fraction form
    830,863.40/1,246,230.30 = 325,326.20/x
  3. Step 3: Cross multiply
    830,863.40x = 1,246,230.30 × 325,326.20
  4. Step 4: Simplify right side
    830,863.40x = 405,431,367,823.86
  5. Step 5: Solve for x
    x = 405,431,367,823.86/830,863.40
  6. Step 6: Final answer
    x = 487,963.93

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Double scale
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Similar ratio
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1.5x scale

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.