Home / 851,156.76-1,276,921.90-252,164.76

Finding the Fourth Proportional to 851,156.76, 1,276,921.90 and 252,164.76

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Solution

The fourth proportional to 851,156.76, 1,276,921.90 and 252,164.76 is: 378,302.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,156.76 : 1,276,921.90 = 252,164.76 : x
  2. Step 2: Convert to fraction form
    851,156.76/1,276,921.90 = 252,164.76/x
  3. Step 3: Cross multiply
    851,156.76x = 1,276,921.90 × 252,164.76
  4. Step 4: Simplify right side
    851,156.76x = 321,994,704,452.24
  5. Step 5: Solve for x
    x = 321,994,704,452.24/851,156.76
  6. Step 6: Final answer
    x = 378,302.47

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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.