Home / 851,276.20-1,276,914.30-345,836.20

Finding the Fourth Proportional to 851,276.20, 1,276,914.30 and 345,836.20

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Solution

The fourth proportional to 851,276.20, 1,276,914.30 and 345,836.20 is: 518,754.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,276.20 : 1,276,914.30 = 345,836.20 : x
  2. Step 2: Convert to fraction form
    851,276.20/1,276,914.30 = 345,836.20/x
  3. Step 3: Cross multiply
    851,276.20x = 1,276,914.30 × 345,836.20
  4. Step 4: Simplify right side
    851,276.20x = 441,603,189,237.66
  5. Step 5: Solve for x
    x = 441,603,189,237.66/851,276.20
  6. Step 6: Final answer
    x = 518,754.30

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Double scale
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Similar ratio
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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.