Home / 1,296,201.77-1,788,259.55-811,923.83

Finding the Fourth Proportional to 1,296,201.77, 1,788,259.55 and 811,923.83

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Solution

The fourth proportional to 1,296,201.77, 1,788,259.55 and 811,923.83 is: 1,120,142.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,201.77 : 1,788,259.55 = 811,923.83 : x
  2. Step 2: Convert to fraction form
    1,296,201.77/1,788,259.55 = 811,923.83/x
  3. Step 3: Cross multiply
    1,296,201.77x = 1,788,259.55 × 811,923.83
  4. Step 4: Simplify right side
    1,296,201.77x = 1,451,930,553,484.70
  5. Step 5: Solve for x
    x = 1,451,930,553,484.70/1,296,201.77
  6. Step 6: Final answer
    x = 1,120,142.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.