Home / 1,384,015.32-1,909,997.82-874,531.80

Finding the Fourth Proportional to 1,384,015.32, 1,909,997.82 and 874,531.80

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Solution

The fourth proportional to 1,384,015.32, 1,909,997.82 and 874,531.80 is: 1,206,889.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,015.32 : 1,909,997.82 = 874,531.80 : x
  2. Step 2: Convert to fraction form
    1,384,015.32/1,909,997.82 = 874,531.80/x
  3. Step 3: Cross multiply
    1,384,015.32x = 1,909,997.82 × 874,531.80
  4. Step 4: Simplify right side
    1,384,015.32x = 1,670,353,831,520.68
  5. Step 5: Solve for x
    x = 1,670,353,831,520.68/1,384,015.32
  6. Step 6: Final answer
    x = 1,206,889.70

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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.