Home / 4,892,421.20-7,338,631.80-2,979,233.60

Finding the Fourth Proportional to 4,892,421.20, 7,338,631.80 and 2,979,233.60

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Solution

The fourth proportional to 4,892,421.20, 7,338,631.80 and 2,979,233.60 is: 4,468,850.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,892,421.20 : 7,338,631.80 = 2,979,233.60 : x
  2. Step 2: Convert to fraction form
    4,892,421.20/7,338,631.80 = 2,979,233.60/x
  3. Step 3: Cross multiply
    4,892,421.20x = 7,338,631.80 × 2,979,233.60
  4. Step 4: Simplify right side
    4,892,421.20x = 21,863,498,436,588.48
  5. Step 5: Solve for x
    x = 21,863,498,436,588.48/4,892,421.20
  6. Step 6: Final answer
    x = 4,468,850.40

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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.