Home / 1,085,129.40-1,626,138.90-798,583.80

Finding the Fourth Proportional to 1,085,129.40, 1,626,138.90 and 798,583.80

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Solution

The fourth proportional to 1,085,129.40, 1,626,138.90 and 798,583.80 is: 1,196,731.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,085,129.40 : 1,626,138.90 = 798,583.80 : x
  2. Step 2: Convert to fraction form
    1,085,129.40/1,626,138.90 = 798,583.80/x
  3. Step 3: Cross multiply
    1,085,129.40x = 1,626,138.90 × 798,583.80
  4. Step 4: Simplify right side
    1,085,129.40x = 1,298,608,182,089.82
  5. Step 5: Solve for x
    x = 1,298,608,182,089.82/1,085,129.40
  6. Step 6: Final answer
    x = 1,196,731.18

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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.