Home / 668,776.40-1,003,164.60-195,442.64

Finding the Fourth Proportional to 668,776.40, 1,003,164.60 and 195,442.64

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Solution

The fourth proportional to 668,776.40, 1,003,164.60 and 195,442.64 is: 293,163.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,776.40 : 1,003,164.60 = 195,442.64 : x
  2. Step 2: Convert to fraction form
    668,776.40/1,003,164.60 = 195,442.64/x
  3. Step 3: Cross multiply
    668,776.40x = 1,003,164.60 × 195,442.64
  4. Step 4: Simplify right side
    668,776.40x = 196,061,137,778.54
  5. Step 5: Solve for x
    x = 196,061,137,778.54/668,776.40
  6. Step 6: Final answer
    x = 293,163.96

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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.