Finding the Fourth Proportional to 428,973.62, 591,963.86 and 235,377.08
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Solution
The fourth proportional to 428,973.62, 591,963.86 and 235,377.08 is: 324,809.54
Step by Step Solution
- Step 1: Write the proportion equation
428,973.62 : 591,963.86 = 235,377.08 : x - Step 2: Convert to fraction form
428,973.62/591,963.86 = 235,377.08/x - Step 3: Cross multiply
428,973.62x = 591,963.86 × 235,377.08 - Step 4: Simplify right side
428,973.62x = 139,334,724,832.33 - Step 5: Solve for x
x = 139,334,724,832.33/428,973.62 - Step 6: Final answer
x = 324,809.54
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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.