Home / 811,072.49-1,119,222.27-448,429.64

Finding the Fourth Proportional to 811,072.49, 1,119,222.27 and 448,429.64

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Solution

The fourth proportional to 811,072.49, 1,119,222.27 and 448,429.64 is: 618,800.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,072.49 : 1,119,222.27 = 448,429.64 : x
  2. Step 2: Convert to fraction form
    811,072.49/1,119,222.27 = 448,429.64/x
  3. Step 3: Cross multiply
    811,072.49x = 1,119,222.27 × 448,429.64
  4. Step 4: Simplify right side
    811,072.49x = 501,892,434,019.97
  5. Step 5: Solve for x
    x = 501,892,434,019.97/811,072.49
  6. Step 6: Final answer
    x = 618,800.96

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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.