Home / 839,729.34-1,259,555.72-271,136.70

Finding the Fourth Proportional to 839,729.34, 1,259,555.72 and 271,136.70

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Solution

The fourth proportional to 839,729.34, 1,259,555.72 and 271,136.70 is: 406,692.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,729.34 : 1,259,555.72 = 271,136.70 : x
  2. Step 2: Convert to fraction form
    839,729.34/1,259,555.72 = 271,136.70/x
  3. Step 3: Cross multiply
    839,729.34x = 1,259,555.72 × 271,136.70
  4. Step 4: Simplify right side
    839,729.34x = 341,511,780,031.24
  5. Step 5: Solve for x
    x = 341,511,780,031.24/839,729.34
  6. Step 6: Final answer
    x = 406,692.69

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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.