Finding the Fourth Proportional to 561,286.41, 774,610.92 and 319,590.09
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Solution
The fourth proportional to 561,286.41, 774,610.92 and 319,590.09 is: 441,054.64
Step by Step Solution
- Step 1: Write the proportion equation
561,286.41 : 774,610.92 = 319,590.09 : x - Step 2: Convert to fraction form
561,286.41/774,610.92 = 319,590.09/x - Step 3: Cross multiply
561,286.41x = 774,610.92 × 319,590.09 - Step 4: Simplify right side
561,286.41x = 247,557,973,637.78 - Step 5: Solve for x
x = 247,557,973,637.78/561,286.41 - Step 6: Final answer
x = 441,054.64
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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.