Home / 1,393,170.25-2,090,415.78-673,108.32

Finding the Fourth Proportional to 1,393,170.25, 2,090,415.78 and 673,108.32

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Solution

The fourth proportional to 1,393,170.25, 2,090,415.78 and 673,108.32 is: 1,009,981.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393,170.25 : 2,090,415.78 = 673,108.32 : x
  2. Step 2: Convert to fraction form
    1,393,170.25/2,090,415.78 = 673,108.32/x
  3. Step 3: Cross multiply
    1,393,170.25x = 2,090,415.78 × 673,108.32
  4. Step 4: Simplify right side
    1,393,170.25x = 1,407,076,253,777.29
  5. Step 5: Solve for x
    x = 1,407,076,253,777.29/1,393,170.25
  6. Step 6: Final answer
    x = 1,009,981.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.