Home / 3,878,132.48-5,817,464.40-1,318,305.68

Finding the Fourth Proportional to 3,878,132.48, 5,817,464.40 and 1,318,305.68

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Solution

The fourth proportional to 3,878,132.48, 5,817,464.40 and 1,318,305.68 is: 1,977,548.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878,132.48 : 5,817,464.40 = 1,318,305.68 : x
  2. Step 2: Convert to fraction form
    3,878,132.48/5,817,464.40 = 1,318,305.68/x
  3. Step 3: Cross multiply
    3,878,132.48x = 5,817,464.40 × 1,318,305.68
  4. Step 4: Simplify right side
    3,878,132.48x = 7,669,196,361,717.79
  5. Step 5: Solve for x
    x = 7,669,196,361,717.79/3,878,132.48
  6. Step 6: Final answer
    x = 1,977,548.83

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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.