Home / 851,144.80-1,276,904.09-252,152.86

Finding the Fourth Proportional to 851,144.80, 1,276,904.09 and 252,152.86

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Solution

The fourth proportional to 851,144.80, 1,276,904.09 and 252,152.86 is: 378,284.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,144.80 : 1,276,904.09 = 252,152.86 : x
  2. Step 2: Convert to fraction form
    851,144.80/1,276,904.09 = 252,152.86/x
  3. Step 3: Cross multiply
    851,144.80x = 1,276,904.09 × 252,152.86
  4. Step 4: Simplify right side
    851,144.80x = 321,975,018,239.20
  5. Step 5: Solve for x
    x = 321,975,018,239.20/851,144.80
  6. Step 6: Final answer
    x = 378,284.66

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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.