Home / 860,423.80-1,290,635.70-827,764.60

Finding the Fourth Proportional to 860,423.80, 1,290,635.70 and 827,764.60

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Solution

The fourth proportional to 860,423.80, 1,290,635.70 and 827,764.60 is: 1,241,646.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,423.80 : 1,290,635.70 = 827,764.60 : x
  2. Step 2: Convert to fraction form
    860,423.80/1,290,635.70 = 827,764.60/x
  3. Step 3: Cross multiply
    860,423.80x = 1,290,635.70 × 827,764.60
  4. Step 4: Simplify right side
    860,423.80x = 1,068,342,543,956.22
  5. Step 5: Solve for x
    x = 1,068,342,543,956.22/860,423.80
  6. Step 6: Final answer
    x = 1,241,646.90

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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.