Finding the Fourth Proportional to 389,048.18, 583,353.39 and 122,759.06
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Solution
The fourth proportional to 389,048.18, 583,353.39 and 122,759.06 is: 184,069.53
Step by Step Solution
- Step 1: Write the proportion equation
389,048.18 : 583,353.39 = 122,759.06 : x - Step 2: Convert to fraction form
389,048.18/583,353.39 = 122,759.06/x - Step 3: Cross multiply
389,048.18x = 583,353.39 × 122,759.06 - Step 4: Simplify right side
389,048.18x = 71,611,913,804.21 - Step 5: Solve for x
x = 71,611,913,804.21/389,048.18 - Step 6: Final answer
x = 184,069.53
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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.