Home / 1,436,771.12-2,138,192.60-1,388,931.44

Finding the Fourth Proportional to 1,436,771.12, 2,138,192.60 and 1,388,931.44

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Solution

The fourth proportional to 1,436,771.12, 2,138,192.60 and 1,388,931.44 is: 2,066,997.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,436,771.12 : 2,138,192.60 = 1,388,931.44 : x
  2. Step 2: Convert to fraction form
    1,436,771.12/2,138,192.60 = 1,388,931.44/x
  3. Step 3: Cross multiply
    1,436,771.12x = 2,138,192.60 × 1,388,931.44
  4. Step 4: Simplify right side
    1,436,771.12x = 2,969,802,926,915.34
  5. Step 5: Solve for x
    x = 2,969,802,926,915.34/1,436,771.12
  6. Step 6: Final answer
    x = 2,066,997.93

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.