Home / 1,551,689.56-2,141,143.47-863,198.67

Finding the Fourth Proportional to 1,551,689.56, 2,141,143.47 and 863,198.67

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Solution

The fourth proportional to 1,551,689.56, 2,141,143.47 and 863,198.67 is: 1,191,109.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,551,689.56 : 2,141,143.47 = 863,198.67 : x
  2. Step 2: Convert to fraction form
    1,551,689.56/2,141,143.47 = 863,198.67/x
  3. Step 3: Cross multiply
    1,551,689.56x = 2,141,143.47 × 863,198.67
  4. Step 4: Simplify right side
    1,551,689.56x = 1,848,232,203,612.47
  5. Step 5: Solve for x
    x = 1,848,232,203,612.47/1,551,689.56
  6. Step 6: Final answer
    x = 1,191,109.52

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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.