Home / 1,384,380.40-1,910,445.30-764,185.91

Finding the Fourth Proportional to 1,384,380.40, 1,910,445.30 and 764,185.91

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Solution

The fourth proportional to 1,384,380.40, 1,910,445.30 and 764,185.91 is: 1,054,576.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,380.40 : 1,910,445.30 = 764,185.91 : x
  2. Step 2: Convert to fraction form
    1,384,380.40/1,910,445.30 = 764,185.91/x
  3. Step 3: Cross multiply
    1,384,380.40x = 1,910,445.30 × 764,185.91
  4. Step 4: Simplify right side
    1,384,380.40x = 1,459,935,376,264.79
  5. Step 5: Solve for x
    x = 1,459,935,376,264.79/1,384,380.40
  6. Step 6: Final answer
    x = 1,054,576.75

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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.