Home / 1,384,380.30-1,910,445.20-764,185.86

Finding the Fourth Proportional to 1,384,380.30, 1,910,445.20 and 764,185.86

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Solution

The fourth proportional to 1,384,380.30, 1,910,445.20 and 764,185.86 is: 1,054,576.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,380.30 : 1,910,445.20 = 764,185.86 : x
  2. Step 2: Convert to fraction form
    1,384,380.30/1,910,445.20 = 764,185.86/x
  3. Step 3: Cross multiply
    1,384,380.30x = 1,910,445.20 × 764,185.86
  4. Step 4: Simplify right side
    1,384,380.30x = 1,459,935,208,144.87
  5. Step 5: Solve for x
    x = 1,459,935,208,144.87/1,384,380.30
  6. Step 6: Final answer
    x = 1,054,576.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.