Home / 811,055.66-1,119,240.44-448,494.80

Finding the Fourth Proportional to 811,055.66, 1,119,240.44 and 448,494.80

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Solution

The fourth proportional to 811,055.66, 1,119,240.44 and 448,494.80 is: 618,913.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,055.66 : 1,119,240.44 = 448,494.80 : x
  2. Step 2: Convert to fraction form
    811,055.66/1,119,240.44 = 448,494.80/x
  3. Step 3: Cross multiply
    811,055.66x = 1,119,240.44 × 448,494.80
  4. Step 4: Simplify right side
    811,055.66x = 501,973,517,289.71
  5. Step 5: Solve for x
    x = 501,973,517,289.71/811,055.66
  6. Step 6: Final answer
    x = 618,913.77

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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.