Home / 830,922.88-1,245,885.52-381,080.20

Finding the Fourth Proportional to 830,922.88, 1,245,885.52 and 381,080.20

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Solution

The fourth proportional to 830,922.88, 1,245,885.52 and 381,080.20 is: 571,391.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,922.88 : 1,245,885.52 = 381,080.20 : x
  2. Step 2: Convert to fraction form
    830,922.88/1,245,885.52 = 381,080.20/x
  3. Step 3: Cross multiply
    830,922.88x = 1,245,885.52 × 381,080.20
  4. Step 4: Simplify right side
    830,922.88x = 474,782,303,138.70
  5. Step 5: Solve for x
    x = 474,782,303,138.70/830,922.88
  6. Step 6: Final answer
    x = 571,391.54

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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.