Finding the Fourth Proportional to 614,379.12, 921,686.94 and 215,133.36
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Solution
The fourth proportional to 614,379.12, 921,686.94 and 215,133.36 is: 322,741.45
Step by Step Solution
- Step 1: Write the proportion equation
614,379.12 : 921,686.94 = 215,133.36 : x - Step 2: Convert to fraction form
614,379.12/921,686.94 = 215,133.36/x - Step 3: Cross multiply
614,379.12x = 921,686.94 × 215,133.36 - Step 4: Simplify right side
614,379.12x = 198,285,608,270.32 - Step 5: Solve for x
x = 198,285,608,270.32/614,379.12 - Step 6: Final answer
x = 322,741.45
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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.