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Finding the Fourth Proportional to 851,806.60, 1,277,709.90 and 252,860.20

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Solution

The fourth proportional to 851,806.60, 1,277,709.90 and 252,860.20 is: 379,290.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,806.60 : 1,277,709.90 = 252,860.20 : x
  2. Step 2: Convert to fraction form
    851,806.60/1,277,709.90 = 252,860.20/x
  3. Step 3: Cross multiply
    851,806.60x = 1,277,709.90 × 252,860.20
  4. Step 4: Simplify right side
    851,806.60x = 323,081,980,855.98
  5. Step 5: Solve for x
    x = 323,081,980,855.98/851,806.60
  6. Step 6: Final answer
    x = 379,290.30

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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.