Home / 1,515,891.83-2,091,917.89-836,813.75

Finding the Fourth Proportional to 1,515,891.83, 2,091,917.89 and 836,813.75

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Solution

The fourth proportional to 1,515,891.83, 2,091,917.89 and 836,813.75 is: 1,154,795.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515,891.83 : 2,091,917.89 = 836,813.75 : x
  2. Step 2: Convert to fraction form
    1,515,891.83/2,091,917.89 = 836,813.75/x
  3. Step 3: Cross multiply
    1,515,891.83x = 2,091,917.89 × 836,813.75
  4. Step 4: Simplify right side
    1,515,891.83x = 1,750,545,654,222.99
  5. Step 5: Solve for x
    x = 1,750,545,654,222.99/1,515,891.83
  6. Step 6: Final answer
    x = 1,154,795.89

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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.