Home / 1,290,492.60-1,934,183.70-659,081.40

Finding the Fourth Proportional to 1,290,492.60, 1,934,183.70 and 659,081.40

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Solution

The fourth proportional to 1,290,492.60, 1,934,183.70 and 659,081.40 is: 987,827.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,492.60 : 1,934,183.70 = 659,081.40 : x
  2. Step 2: Convert to fraction form
    1,290,492.60/1,934,183.70 = 659,081.40/x
  3. Step 3: Cross multiply
    1,290,492.60x = 1,934,183.70 × 659,081.40
  4. Step 4: Simplify right side
    1,290,492.60x = 1,274,784,500,853.18
  5. Step 5: Solve for x
    x = 1,274,784,500,853.18/1,290,492.60
  6. Step 6: Final answer
    x = 987,827.83

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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.