Home / 850,566.30-1,275,849.45-289,600.80

Finding the Fourth Proportional to 850,566.30, 1,275,849.45 and 289,600.80

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Solution

The fourth proportional to 850,566.30, 1,275,849.45 and 289,600.80 is: 434,401.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,566.30 : 1,275,849.45 = 289,600.80 : x
  2. Step 2: Convert to fraction form
    850,566.30/1,275,849.45 = 289,600.80/x
  3. Step 3: Cross multiply
    850,566.30x = 1,275,849.45 × 289,600.80
  4. Step 4: Simplify right side
    850,566.30x = 369,487,021,399.56
  5. Step 5: Solve for x
    x = 369,487,021,399.56/850,566.30
  6. Step 6: Final answer
    x = 434,401.20

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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.