Home / 1,556,761.55-2,148,282.23-912,610.78

Finding the Fourth Proportional to 1,556,761.55, 2,148,282.23 and 912,610.78

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Solution

The fourth proportional to 1,556,761.55, 2,148,282.23 and 912,610.78 is: 1,259,374.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556,761.55 : 2,148,282.23 = 912,610.78 : x
  2. Step 2: Convert to fraction form
    1,556,761.55/2,148,282.23 = 912,610.78/x
  3. Step 3: Cross multiply
    1,556,761.55x = 2,148,282.23 × 912,610.78
  4. Step 4: Simplify right side
    1,556,761.55x = 1,960,545,521,580.44
  5. Step 5: Solve for x
    x = 1,960,545,521,580.44/1,556,761.55
  6. Step 6: Final answer
    x = 1,259,374.32

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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.