Home / 1,289,017.98-1,778,895.30-881,973.54

Finding the Fourth Proportional to 1,289,017.98, 1,778,895.30 and 881,973.54

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Solution

The fourth proportional to 1,289,017.98, 1,778,895.30 and 881,973.54 is: 1,217,158.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,017.98 : 1,778,895.30 = 881,973.54 : x
  2. Step 2: Convert to fraction form
    1,289,017.98/1,778,895.30 = 881,973.54/x
  3. Step 3: Cross multiply
    1,289,017.98x = 1,778,895.30 × 881,973.54
  4. Step 4: Simplify right side
    1,289,017.98x = 1,568,938,585,030.36
  5. Step 5: Solve for x
    x = 1,568,938,585,030.36/1,289,017.98
  6. Step 6: Final answer
    x = 1,217,158.03

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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.