Home / 850,573.60-1,276,033.20-289,664.80

Finding the Fourth Proportional to 850,573.60, 1,276,033.20 and 289,664.80

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Solution

The fourth proportional to 850,573.60, 1,276,033.20 and 289,664.80 is: 434,556.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,573.60 : 1,276,033.20 = 289,664.80 : x
  2. Step 2: Convert to fraction form
    850,573.60/1,276,033.20 = 289,664.80/x
  3. Step 3: Cross multiply
    850,573.60x = 1,276,033.20 × 289,664.80
  4. Step 4: Simplify right side
    850,573.60x = 369,621,901,671.36
  5. Step 5: Solve for x
    x = 369,621,901,671.36/850,573.60
  6. Step 6: Final answer
    x = 434,556.05

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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.