Home / 1,368,612.32-2,052,786.54-421,728.80

Finding the Fourth Proportional to 1,368,612.32, 2,052,786.54 and 421,728.80

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Solution

The fourth proportional to 1,368,612.32, 2,052,786.54 and 421,728.80 is: 632,552.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,612.32 : 2,052,786.54 = 421,728.80 : x
  2. Step 2: Convert to fraction form
    1,368,612.32/2,052,786.54 = 421,728.80/x
  3. Step 3: Cross multiply
    1,368,612.32x = 2,052,786.54 × 421,728.80
  4. Step 4: Simplify right side
    1,368,612.32x = 865,719,204,170.35
  5. Step 5: Solve for x
    x = 865,719,204,170.35/1,368,612.32
  6. Step 6: Final answer
    x = 632,552.54

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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.