Home / 3,878,855.74-5,818,286.85-1,219,463.74

Finding the Fourth Proportional to 3,878,855.74, 5,818,286.85 and 1,219,463.74

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Solution

The fourth proportional to 3,878,855.74, 5,818,286.85 and 1,219,463.74 is: 1,829,196.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878,855.74 : 5,818,286.85 = 1,219,463.74 : x
  2. Step 2: Convert to fraction form
    3,878,855.74/5,818,286.85 = 1,219,463.74/x
  3. Step 3: Cross multiply
    3,878,855.74x = 5,818,286.85 × 1,219,463.74
  4. Step 4: Simplify right side
    3,878,855.74x = 7,095,189,842,493.82
  5. Step 5: Solve for x
    x = 7,095,189,842,493.82/3,878,855.74
  6. Step 6: Final answer
    x = 1,829,196.63

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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.