Home / 1,289,010.85-1,778,885.45-881,966.41

Finding the Fourth Proportional to 1,289,010.85, 1,778,885.45 and 881,966.41

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Solution

The fourth proportional to 1,289,010.85, 1,778,885.45 and 881,966.41 is: 1,217,148.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,010.85 : 1,778,885.45 = 881,966.41 : x
  2. Step 2: Convert to fraction form
    1,289,010.85/1,778,885.45 = 881,966.41/x
  3. Step 3: Cross multiply
    1,289,010.85x = 1,778,885.45 × 881,966.41
  4. Step 4: Simplify right side
    1,289,010.85x = 1,568,917,208,588.06
  5. Step 5: Solve for x
    x = 1,568,917,208,588.06/1,289,010.85
  6. Step 6: Final answer
    x = 1,217,148.18

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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.