Home / 1,420,208.10-1,959,889.37-808,360.85

Finding the Fourth Proportional to 1,420,208.10, 1,959,889.37 and 808,360.85

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Solution

The fourth proportional to 1,420,208.10, 1,959,889.37 and 808,360.85 is: 1,115,539.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,208.10 : 1,959,889.37 = 808,360.85 : x
  2. Step 2: Convert to fraction form
    1,420,208.10/1,959,889.37 = 808,360.85/x
  3. Step 3: Cross multiply
    1,420,208.10x = 1,959,889.37 × 808,360.85
  4. Step 4: Simplify right side
    1,420,208.10x = 1,584,297,826,872.71
  5. Step 5: Solve for x
    x = 1,584,297,826,872.71/1,420,208.10
  6. Step 6: Final answer
    x = 1,115,539.21

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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.