Home / 830,375.40-1,245,498.30-324,838.20

Finding the Fourth Proportional to 830,375.40, 1,245,498.30 and 324,838.20

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Solution

The fourth proportional to 830,375.40, 1,245,498.30 and 324,838.20 is: 487,231.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,375.40 : 1,245,498.30 = 324,838.20 : x
  2. Step 2: Convert to fraction form
    830,375.40/1,245,498.30 = 324,838.20/x
  3. Step 3: Cross multiply
    830,375.40x = 1,245,498.30 × 324,838.20
  4. Step 4: Simplify right side
    830,375.40x = 404,585,425,875.06
  5. Step 5: Solve for x
    x = 404,585,425,875.06/830,375.40
  6. Step 6: Final answer
    x = 487,231.95

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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.