Home / 1,715,690.21-2,571,861.78-816,890.45

Finding the Fourth Proportional to 1,715,690.21, 2,571,861.78 and 816,890.45

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Solution

The fourth proportional to 1,715,690.21, 2,571,861.78 and 816,890.45 is: 1,224,538.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,715,690.21 : 2,571,861.78 = 816,890.45 : x
  2. Step 2: Convert to fraction form
    1,715,690.21/2,571,861.78 = 816,890.45/x
  3. Step 3: Cross multiply
    1,715,690.21x = 2,571,861.78 × 816,890.45
  4. Step 4: Simplify right side
    1,715,690.21x = 2,100,929,313,942.69
  5. Step 5: Solve for x
    x = 2,100,929,313,942.69/1,715,690.21
  6. Step 6: Final answer
    x = 1,224,538.85

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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.