Home / 851,251.20-1,276,876.80-345,811.20

Finding the Fourth Proportional to 851,251.20, 1,276,876.80 and 345,811.20

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Solution

The fourth proportional to 851,251.20, 1,276,876.80 and 345,811.20 is: 518,716.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,251.20 : 1,276,876.80 = 345,811.20 : x
  2. Step 2: Convert to fraction form
    851,251.20/1,276,876.80 = 345,811.20/x
  3. Step 3: Cross multiply
    851,251.20x = 1,276,876.80 × 345,811.20
  4. Step 4: Simplify right side
    851,251.20x = 441,558,298,460.16
  5. Step 5: Solve for x
    x = 441,558,298,460.16/851,251.20
  6. Step 6: Final answer
    x = 518,716.80

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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.