Home / 2,079,320.80-3,118,689.60-659,520.40

Finding the Fourth Proportional to 2,079,320.80, 3,118,689.60 and 659,520.40

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Solution

The fourth proportional to 2,079,320.80, 3,118,689.60 and 659,520.40 is: 989,188.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079,320.80 : 3,118,689.60 = 659,520.40 : x
  2. Step 2: Convert to fraction form
    2,079,320.80/3,118,689.60 = 659,520.40/x
  3. Step 3: Cross multiply
    2,079,320.80x = 3,118,689.60 × 659,520.40
  4. Step 4: Simplify right side
    2,079,320.80x = 2,056,839,412,467.84
  5. Step 5: Solve for x
    x = 2,056,839,412,467.84/2,079,320.80
  6. Step 6: Final answer
    x = 989,188.11

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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.