Home / 850,530.60-1,275,968.70-289,621.80

Finding the Fourth Proportional to 850,530.60, 1,275,968.70 and 289,621.80

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Solution

The fourth proportional to 850,530.60, 1,275,968.70 and 289,621.80 is: 434,491.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,530.60 : 1,275,968.70 = 289,621.80 : x
  2. Step 2: Convert to fraction form
    850,530.60/1,275,968.70 = 289,621.80/x
  3. Step 3: Cross multiply
    850,530.60x = 1,275,968.70 × 289,621.80
  4. Step 4: Simplify right side
    850,530.60x = 369,548,351,637.66
  5. Step 5: Solve for x
    x = 369,548,351,637.66/850,530.60
  6. Step 6: Final answer
    x = 434,491.54

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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.