Home / 860,701.60-1,289,497.20-761,168.80

Finding the Fourth Proportional to 860,701.60, 1,289,497.20 and 761,168.80

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Solution

The fourth proportional to 860,701.60, 1,289,497.20 and 761,168.80 is: 1,140,377.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,701.60 : 1,289,497.20 = 761,168.80 : x
  2. Step 2: Convert to fraction form
    860,701.60/1,289,497.20 = 761,168.80/x
  3. Step 3: Cross multiply
    860,701.60x = 1,289,497.20 × 761,168.80
  4. Step 4: Simplify right side
    860,701.60x = 981,525,036,327.36
  5. Step 5: Solve for x
    x = 981,525,036,327.36/860,701.60
  6. Step 6: Final answer
    x = 1,140,377.85

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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.