Home / 1,628,820.72-2,247,878.87-940,521.60

Finding the Fourth Proportional to 1,628,820.72, 2,247,878.87 and 940,521.60

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Solution

The fourth proportional to 1,628,820.72, 2,247,878.87 and 940,521.60 is: 1,297,981.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,628,820.72 : 2,247,878.87 = 940,521.60 : x
  2. Step 2: Convert to fraction form
    1,628,820.72/2,247,878.87 = 940,521.60/x
  3. Step 3: Cross multiply
    1,628,820.72x = 2,247,878.87 × 940,521.60
  4. Step 4: Simplify right side
    1,628,820.72x = 2,114,178,631,418.59
  5. Step 5: Solve for x
    x = 2,114,178,631,418.59/1,628,820.72
  6. Step 6: Final answer
    x = 1,297,981.17

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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.