Finding the Fourth Proportional to 557,054.41, 768,653.99 and 318,544.33
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Solution
The fourth proportional to 557,054.41, 768,653.99 and 318,544.33 is: 439,544.80
Step by Step Solution
- Step 1: Write the proportion equation
557,054.41 : 768,653.99 = 318,544.33 : x - Step 2: Convert to fraction form
557,054.41/768,653.99 = 318,544.33/x - Step 3: Cross multiply
557,054.41x = 768,653.99 × 318,544.33 - Step 4: Simplify right side
557,054.41x = 244,850,368,653.66 - Step 5: Solve for x
x = 244,850,368,653.66/557,054.41 - Step 6: Final answer
x = 439,544.80
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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.