Home / 1,078,965.62-1,618,623.63-405,099.86

Finding the Fourth Proportional to 1,078,965.62, 1,618,623.63 and 405,099.86

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Solution

The fourth proportional to 1,078,965.62, 1,618,623.63 and 405,099.86 is: 607,715.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,965.62 : 1,618,623.63 = 405,099.86 : x
  2. Step 2: Convert to fraction form
    1,078,965.62/1,618,623.63 = 405,099.86/x
  3. Step 3: Cross multiply
    1,078,965.62x = 1,618,623.63 × 405,099.86
  4. Step 4: Simplify right side
    1,078,965.62x = 655,704,205,905.69
  5. Step 5: Solve for x
    x = 655,704,205,905.69/1,078,965.62
  6. Step 6: Final answer
    x = 607,715.57

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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.