Home / 783,709.70-1,175,564.55-409,847.30

Finding the Fourth Proportional to 783,709.70, 1,175,564.55 and 409,847.30

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Solution

The fourth proportional to 783,709.70, 1,175,564.55 and 409,847.30 is: 614,770.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,709.70 : 1,175,564.55 = 409,847.30 : x
  2. Step 2: Convert to fraction form
    783,709.70/1,175,564.55 = 409,847.30/x
  3. Step 3: Cross multiply
    783,709.70x = 1,175,564.55 × 409,847.30
  4. Step 4: Simplify right side
    783,709.70x = 481,801,956,793.22
  5. Step 5: Solve for x
    x = 481,801,956,793.22/783,709.70
  6. Step 6: Final answer
    x = 614,770.95

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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.