Home / 811,055.76-1,119,245.25-448,471.68

Finding the Fourth Proportional to 811,055.76, 1,119,245.25 and 448,471.68

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Solution

The fourth proportional to 811,055.76, 1,119,245.25 and 448,471.68 is: 618,884.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,055.76 : 1,119,245.25 = 448,471.68 : x
  2. Step 2: Convert to fraction form
    811,055.76/1,119,245.25 = 448,471.68/x
  3. Step 3: Cross multiply
    811,055.76x = 1,119,245.25 × 448,471.68
  4. Step 4: Simplify right side
    811,055.76x = 501,949,797,599.52
  5. Step 5: Solve for x
    x = 501,949,797,599.52/811,055.76
  6. Step 6: Final answer
    x = 618,884.45

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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.