Home / 1,086,929.80-1,630,394.70-838,097.80

Finding the Fourth Proportional to 1,086,929.80, 1,630,394.70 and 838,097.80

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Solution

The fourth proportional to 1,086,929.80, 1,630,394.70 and 838,097.80 is: 1,257,146.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,929.80 : 1,630,394.70 = 838,097.80 : x
  2. Step 2: Convert to fraction form
    1,086,929.80/1,630,394.70 = 838,097.80/x
  3. Step 3: Cross multiply
    1,086,929.80x = 1,630,394.70 × 838,097.80
  4. Step 4: Simplify right side
    1,086,929.80x = 1,366,430,211,201.66
  5. Step 5: Solve for x
    x = 1,366,430,211,201.66/1,086,929.80
  6. Step 6: Final answer
    x = 1,257,146.70

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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.