Home / 1,213,698.85-1,811,319.53-1,079,181.34

Finding the Fourth Proportional to 1,213,698.85, 1,811,319.53 and 1,079,181.34

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Solution

The fourth proportional to 1,213,698.85, 1,811,319.53 and 1,079,181.34 is: 1,610,566.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,698.85 : 1,811,319.53 = 1,079,181.34 : x
  2. Step 2: Convert to fraction form
    1,213,698.85/1,811,319.53 = 1,079,181.34/x
  3. Step 3: Cross multiply
    1,213,698.85x = 1,811,319.53 × 1,079,181.34
  4. Step 4: Simplify right side
    1,213,698.85x = 1,954,742,237,553.57
  5. Step 5: Solve for x
    x = 1,954,742,237,553.57/1,213,698.85
  6. Step 6: Final answer
    x = 1,610,566.11

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.