Home / 771,178.11-1,157,003.63-345,072.64

Finding the Fourth Proportional to 771,178.11, 1,157,003.63 and 345,072.64

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Solution

The fourth proportional to 771,178.11, 1,157,003.63 and 345,072.64 is: 517,714.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,178.11 : 1,157,003.63 = 345,072.64 : x
  2. Step 2: Convert to fraction form
    771,178.11/1,157,003.63 = 345,072.64/x
  3. Step 3: Cross multiply
    771,178.11x = 1,157,003.63 × 345,072.64
  4. Step 4: Simplify right side
    771,178.11x = 399,250,297,093.68
  5. Step 5: Solve for x
    x = 399,250,297,093.68/771,178.11
  6. Step 6: Final answer
    x = 517,714.77

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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.