Home / 860,738.60-1,289,552.70-761,205.80

Finding the Fourth Proportional to 860,738.60, 1,289,552.70 and 761,205.80

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Solution

The fourth proportional to 860,738.60, 1,289,552.70 and 761,205.80 is: 1,140,433.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,738.60 : 1,289,552.70 = 761,205.80 : x
  2. Step 2: Convert to fraction form
    860,738.60/1,289,552.70 = 761,205.80/x
  3. Step 3: Cross multiply
    860,738.60x = 1,289,552.70 × 761,205.80
  4. Step 4: Simplify right side
    860,738.60x = 981,614,994,645.66
  5. Step 5: Solve for x
    x = 981,614,994,645.66/860,738.60
  6. Step 6: Final answer
    x = 1,140,433.34

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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.