Home / 811,946.05-1,120,368.24-449,369.03

Finding the Fourth Proportional to 811,946.05, 1,120,368.24 and 449,369.03

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Solution

The fourth proportional to 811,946.05, 1,120,368.24 and 449,369.03 is: 620,064.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,946.05 : 1,120,368.24 = 449,369.03 : x
  2. Step 2: Convert to fraction form
    811,946.05/1,120,368.24 = 449,369.03/x
  3. Step 3: Cross multiply
    811,946.05x = 1,120,368.24 × 449,369.03
  4. Step 4: Simplify right side
    811,946.05x = 503,458,792,052.53
  5. Step 5: Solve for x
    x = 503,458,792,052.53/811,946.05
  6. Step 6: Final answer
    x = 620,064.34

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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.