Home / 850,666.80-1,276,000.20-259,690.80

Finding the Fourth Proportional to 850,666.80, 1,276,000.20 and 259,690.80

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Solution

The fourth proportional to 850,666.80, 1,276,000.20 and 259,690.80 is: 389,536.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,666.80 : 1,276,000.20 = 259,690.80 : x
  2. Step 2: Convert to fraction form
    850,666.80/1,276,000.20 = 259,690.80/x
  3. Step 3: Cross multiply
    850,666.80x = 1,276,000.20 × 259,690.80
  4. Step 4: Simplify right side
    850,666.80x = 331,365,512,738.16
  5. Step 5: Solve for x
    x = 331,365,512,738.16/850,666.80
  6. Step 6: Final answer
    x = 389,536.20

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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.