Home / 783,098.55-1,174,647.83-689,786.55

Finding the Fourth Proportional to 783,098.55, 1,174,647.83 and 689,786.55

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Solution

The fourth proportional to 783,098.55, 1,174,647.83 and 689,786.55 is: 1,034,679.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,098.55 : 1,174,647.83 = 689,786.55 : x
  2. Step 2: Convert to fraction form
    783,098.55/1,174,647.83 = 689,786.55/x
  3. Step 3: Cross multiply
    783,098.55x = 1,174,647.83 × 689,786.55
  4. Step 4: Simplify right side
    783,098.55x = 810,256,270,671.75
  5. Step 5: Solve for x
    x = 810,256,270,671.75/783,098.55
  6. Step 6: Final answer
    x = 1,034,679.83

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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.