Home / 1,253,163.60-1,879,745.40-779,605.20

Finding the Fourth Proportional to 1,253,163.60, 1,879,745.40 and 779,605.20

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Solution

The fourth proportional to 1,253,163.60, 1,879,745.40 and 779,605.20 is: 1,169,407.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,163.60 : 1,879,745.40 = 779,605.20 : x
  2. Step 2: Convert to fraction form
    1,253,163.60/1,879,745.40 = 779,605.20/x
  3. Step 3: Cross multiply
    1,253,163.60x = 1,879,745.40 × 779,605.20
  4. Step 4: Simplify right side
    1,253,163.60x = 1,465,459,288,516.08
  5. Step 5: Solve for x
    x = 1,465,459,288,516.08/1,253,163.60
  6. Step 6: Final answer
    x = 1,169,407.80

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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.