Home / 1,239,733.80-1,859,600.70-838,200.60

Finding the Fourth Proportional to 1,239,733.80, 1,859,600.70 and 838,200.60

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Solution

The fourth proportional to 1,239,733.80, 1,859,600.70 and 838,200.60 is: 1,257,300.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,733.80 : 1,859,600.70 = 838,200.60 : x
  2. Step 2: Convert to fraction form
    1,239,733.80/1,859,600.70 = 838,200.60/x
  3. Step 3: Cross multiply
    1,239,733.80x = 1,859,600.70 × 838,200.60
  4. Step 4: Simplify right side
    1,239,733.80x = 1,558,718,422,500.42
  5. Step 5: Solve for x
    x = 1,558,718,422,500.42/1,239,733.80
  6. Step 6: Final answer
    x = 1,257,300.90

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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.