Home / 701,128.20-1,051,692.30-257,838.60

Finding the Fourth Proportional to 701,128.20, 1,051,692.30 and 257,838.60

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Solution

The fourth proportional to 701,128.20, 1,051,692.30 and 257,838.60 is: 386,757.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,128.20 : 1,051,692.30 = 257,838.60 : x
  2. Step 2: Convert to fraction form
    701,128.20/1,051,692.30 = 257,838.60/x
  3. Step 3: Cross multiply
    701,128.20x = 1,051,692.30 × 257,838.60
  4. Step 4: Simplify right side
    701,128.20x = 271,166,870,262.78
  5. Step 5: Solve for x
    x = 271,166,870,262.78/701,128.20
  6. Step 6: Final answer
    x = 386,757.90

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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.