Home / 1,384,392.61-1,910,462.21-764,198.16

Finding the Fourth Proportional to 1,384,392.61, 1,910,462.21 and 764,198.16

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Solution

The fourth proportional to 1,384,392.61, 1,910,462.21 and 764,198.16 is: 1,054,593.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,392.61 : 1,910,462.21 = 764,198.16 : x
  2. Step 2: Convert to fraction form
    1,384,392.61/1,910,462.21 = 764,198.16/x
  3. Step 3: Cross multiply
    1,384,392.61x = 1,910,462.21 × 764,198.16
  4. Step 4: Simplify right side
    1,384,392.61x = 1,459,971,705,631.53
  5. Step 5: Solve for x
    x = 1,459,971,705,631.53/1,384,392.61
  6. Step 6: Final answer
    x = 1,054,593.69

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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.