Home / 781,186.86-1,171,575.24-331,676.34

Finding the Fourth Proportional to 781,186.86, 1,171,575.24 and 331,676.34

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Solution

The fourth proportional to 781,186.86, 1,171,575.24 and 331,676.34 is: 497,427.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,186.86 : 1,171,575.24 = 331,676.34 : x
  2. Step 2: Convert to fraction form
    781,186.86/1,171,575.24 = 331,676.34/x
  3. Step 3: Cross multiply
    781,186.86x = 1,171,575.24 × 331,676.34
  4. Step 4: Simplify right side
    781,186.86x = 388,583,787,637.82
  5. Step 5: Solve for x
    x = 388,583,787,637.82/781,186.86
  6. Step 6: Final answer
    x = 497,427.45

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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.