Home / 2,120,756.73-2,926,556.64-1,153,890.78

Finding the Fourth Proportional to 2,120,756.73, 2,926,556.64 and 1,153,890.78

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Solution

The fourth proportional to 2,120,756.73, 2,926,556.64 and 1,153,890.78 is: 1,592,321.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,120,756.73 : 2,926,556.64 = 1,153,890.78 : x
  2. Step 2: Convert to fraction form
    2,120,756.73/2,926,556.64 = 1,153,890.78/x
  3. Step 3: Cross multiply
    2,120,756.73x = 2,926,556.64 × 1,153,890.78
  4. Step 4: Simplify right side
    2,120,756.73x = 3,376,926,724,043.78
  5. Step 5: Solve for x
    x = 3,376,926,724,043.78/2,120,756.73
  6. Step 6: Final answer
    x = 1,592,321.59

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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.