Finding the Fourth Proportional to 694,427.95, 958,347.79 and 388,486.08
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Solution
The fourth proportional to 694,427.95, 958,347.79 and 388,486.08 is: 536,131.61
Step by Step Solution
- Step 1: Write the proportion equation
694,427.95 : 958,347.79 = 388,486.08 : x - Step 2: Convert to fraction form
694,427.95/958,347.79 = 388,486.08/x - Step 3: Cross multiply
694,427.95x = 958,347.79 × 388,486.08 - Step 4: Simplify right side
694,427.95x = 372,304,771,422.02 - Step 5: Solve for x
x = 372,304,771,422.02/694,427.95 - Step 6: Final answer
x = 536,131.61
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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.