Home / 751,705.74-1,127,386.08-448,185.78

Finding the Fourth Proportional to 751,705.74, 1,127,386.08 and 448,185.78

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Solution

The fourth proportional to 751,705.74, 1,127,386.08 and 448,185.78 is: 672,175.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,705.74 : 1,127,386.08 = 448,185.78 : x
  2. Step 2: Convert to fraction form
    751,705.74/1,127,386.08 = 448,185.78/x
  3. Step 3: Cross multiply
    751,705.74x = 1,127,386.08 × 448,185.78
  4. Step 4: Simplify right side
    751,705.74x = 505,278,409,625.94
  5. Step 5: Solve for x
    x = 505,278,409,625.94/751,705.74
  6. Step 6: Final answer
    x = 672,175.80

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.