Home / 2,140,459.92-3,211,020.72-720,404.64

Finding the Fourth Proportional to 2,140,459.92, 3,211,020.72 and 720,404.64

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Solution

The fourth proportional to 2,140,459.92, 3,211,020.72 and 720,404.64 is: 1,080,718.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140,459.92 : 3,211,020.72 = 720,404.64 : x
  2. Step 2: Convert to fraction form
    2,140,459.92/3,211,020.72 = 720,404.64/x
  3. Step 3: Cross multiply
    2,140,459.92x = 3,211,020.72 × 720,404.64
  4. Step 4: Simplify right side
    2,140,459.92x = 2,313,234,225,824.14
  5. Step 5: Solve for x
    x = 2,313,234,225,824.14/2,140,459.92
  6. Step 6: Final answer
    x = 1,080,718.31

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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.