Home / 810,694.26-1,118,738.39-448,108.80

Finding the Fourth Proportional to 810,694.26, 1,118,738.39 and 448,108.80

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Solution

The fourth proportional to 810,694.26, 1,118,738.39 and 448,108.80 is: 618,379.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,694.26 : 1,118,738.39 = 448,108.80 : x
  2. Step 2: Convert to fraction form
    810,694.26/1,118,738.39 = 448,108.80/x
  3. Step 3: Cross multiply
    810,694.26x = 1,118,738.39 × 448,108.80
  4. Step 4: Simplify right side
    810,694.26x = 501,316,515,216.29
  5. Step 5: Solve for x
    x = 501,316,515,216.29/810,694.26
  6. Step 6: Final answer
    x = 618,379.26

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Double scale
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1.5x scale

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.