Finding the Fourth Proportional to 690,842.20, 1,036,263.30 and 241,413.70
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Solution
The fourth proportional to 690,842.20, 1,036,263.30 and 241,413.70 is: 362,120.55
Step by Step Solution
- Step 1: Write the proportion equation
690,842.20 : 1,036,263.30 = 241,413.70 : x - Step 2: Convert to fraction form
690,842.20/1,036,263.30 = 241,413.70/x - Step 3: Cross multiply
690,842.20x = 1,036,263.30 × 241,413.70 - Step 4: Simplify right side
690,842.20x = 250,168,157,427.21 - Step 5: Solve for x
x = 250,168,157,427.21/690,842.20 - Step 6: Final answer
x = 362,120.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.