Home / 771,354.37-1,157,108.11-285,163.95

Finding the Fourth Proportional to 771,354.37, 1,157,108.11 and 285,163.95

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Solution

The fourth proportional to 771,354.37, 1,157,108.11 and 285,163.95 is: 427,774.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,354.37 : 1,157,108.11 = 285,163.95 : x
  2. Step 2: Convert to fraction form
    771,354.37/1,157,108.11 = 285,163.95/x
  3. Step 3: Cross multiply
    771,354.37x = 1,157,108.11 × 285,163.95
  4. Step 4: Simplify right side
    771,354.37x = 329,965,519,224.64
  5. Step 5: Solve for x
    x = 329,965,519,224.64/771,354.37
  6. Step 6: Final answer
    x = 427,774.23

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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.