Home / 771,438.89-1,157,234.34-265,933.33

Finding the Fourth Proportional to 771,438.89, 1,157,234.34 and 265,933.33

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Solution

The fourth proportional to 771,438.89, 1,157,234.34 and 265,933.33 is: 398,926.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,438.89 : 1,157,234.34 = 265,933.33 : x
  2. Step 2: Convert to fraction form
    771,438.89/1,157,234.34 = 265,933.33/x
  3. Step 3: Cross multiply
    771,438.89x = 1,157,234.34 × 265,933.33
  4. Step 4: Simplify right side
    771,438.89x = 307,747,179,730.72
  5. Step 5: Solve for x
    x = 307,747,179,730.72/771,438.89
  6. Step 6: Final answer
    x = 398,926.19

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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.