Finding the Fourth Proportional to 722,713.62, 997,352.73 and 400,428.75
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Solution
The fourth proportional to 722,713.62, 997,352.73 and 400,428.75 is: 552,596.07
Step by Step Solution
- Step 1: Write the proportion equation
722,713.62 : 997,352.73 = 400,428.75 : x - Step 2: Convert to fraction form
722,713.62/997,352.73 = 400,428.75/x - Step 3: Cross multiply
722,713.62x = 997,352.73 × 400,428.75 - Step 4: Simplify right side
722,713.62x = 399,368,706,982.99 - Step 5: Solve for x
x = 399,368,706,982.99/722,713.62 - Step 6: Final answer
x = 552,596.07
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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.