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Finding the Fourth Proportional to 1,664,915.41, 2,297,583.22 and 900,968.97

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Solution

The fourth proportional to 1,664,915.41, 2,297,583.22 and 900,968.97 is: 1,243,337.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,664,915.41 : 2,297,583.22 = 900,968.97 : x
  2. Step 2: Convert to fraction form
    1,664,915.41/2,297,583.22 = 900,968.97/x
  3. Step 3: Cross multiply
    1,664,915.41x = 2,297,583.22 × 900,968.97
  4. Step 4: Simplify right side
    1,664,915.41x = 2,070,051,187,212.68
  5. Step 5: Solve for x
    x = 2,070,051,187,212.68/1,664,915.41
  6. Step 6: Final answer
    x = 1,243,337.15

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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.