Home / 1,289,011.41-1,778,886.23-881,966.97

Finding the Fourth Proportional to 1,289,011.41, 1,778,886.23 and 881,966.97

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Solution

The fourth proportional to 1,289,011.41, 1,778,886.23 and 881,966.97 is: 1,217,148.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,011.41 : 1,778,886.23 = 881,966.97 : x
  2. Step 2: Convert to fraction form
    1,289,011.41/1,778,886.23 = 881,966.97/x
  3. Step 3: Cross multiply
    1,289,011.41x = 1,778,886.23 × 881,966.97
  4. Step 4: Simplify right side
    1,289,011.41x = 1,568,918,893,837.99
  5. Step 5: Solve for x
    x = 1,568,918,893,837.99/1,289,011.41
  6. Step 6: Final answer
    x = 1,217,148.96

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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.