Home / 1,308,718.26-1,962,698.04-509,821.74

Finding the Fourth Proportional to 1,308,718.26, 1,962,698.04 and 509,821.74

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Solution

The fourth proportional to 1,308,718.26, 1,962,698.04 and 509,821.74 is: 764,584.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,718.26 : 1,962,698.04 = 509,821.74 : x
  2. Step 2: Convert to fraction form
    1,308,718.26/1,962,698.04 = 509,821.74/x
  3. Step 3: Cross multiply
    1,308,718.26x = 1,962,698.04 × 509,821.74
  4. Step 4: Simplify right side
    1,308,718.26x = 1,000,626,129,847.39
  5. Step 5: Solve for x
    x = 1,000,626,129,847.39/1,308,718.26
  6. Step 6: Final answer
    x = 764,584.83

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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.