Home / 1,556,469.52-2,147,960.78-877,406

Finding the Fourth Proportional to 1,556,469.52, 2,147,960.78 and 877,406

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Solution

The fourth proportional to 1,556,469.52, 2,147,960.78 and 877,406 is: 1,210,838.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556,469.52 : 2,147,960.78 = 877,406 : x
  2. Step 2: Convert to fraction form
    1,556,469.52/2,147,960.78 = 877,406/x
  3. Step 3: Cross multiply
    1,556,469.52x = 2,147,960.78 × 877,406
  4. Step 4: Simplify right side
    1,556,469.52x = 1,884,633,676,136.68
  5. Step 5: Solve for x
    x = 1,884,633,676,136.68/1,556,469.52
  6. Step 6: Final answer
    x = 1,210,838.79

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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.