Home / 4,579,891.20-6,869,836.80-1,214,438.40

Finding the Fourth Proportional to 4,579,891.20, 6,869,836.80 and 1,214,438.40

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Solution

The fourth proportional to 4,579,891.20, 6,869,836.80 and 1,214,438.40 is: 1,821,657.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,579,891.20 : 6,869,836.80 = 1,214,438.40 : x
  2. Step 2: Convert to fraction form
    4,579,891.20/6,869,836.80 = 1,214,438.40/x
  3. Step 3: Cross multiply
    4,579,891.20x = 6,869,836.80 × 1,214,438.40
  4. Step 4: Simplify right side
    4,579,891.20x = 8,342,993,611,653.12
  5. Step 5: Solve for x
    x = 8,342,993,611,653.12/4,579,891.20
  6. Step 6: Final answer
    x = 1,821,657.60

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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.