Home / 830,375.80-1,245,563.70-231,429.40

Finding the Fourth Proportional to 830,375.80, 1,245,563.70 and 231,429.40

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Solution

The fourth proportional to 830,375.80, 1,245,563.70 and 231,429.40 is: 347,144.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,375.80 : 1,245,563.70 = 231,429.40 : x
  2. Step 2: Convert to fraction form
    830,375.80/1,245,563.70 = 231,429.40/x
  3. Step 3: Cross multiply
    830,375.80x = 1,245,563.70 × 231,429.40
  4. Step 4: Simplify right side
    830,375.80x = 288,260,059,752.78
  5. Step 5: Solve for x
    x = 288,260,059,752.78/830,375.80
  6. Step 6: Final answer
    x = 347,144.10

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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.