Finding the Fourth Proportional to 626,478.19, 864,539.90 and 339,998.28
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Solution
The fourth proportional to 626,478.19, 864,539.90 and 339,998.28 is: 469,197.62
Step by Step Solution
- Step 1: Write the proportion equation
626,478.19 : 864,539.90 = 339,998.28 : x - Step 2: Convert to fraction form
626,478.19/864,539.90 = 339,998.28/x - Step 3: Cross multiply
626,478.19x = 864,539.90 × 339,998.28 - Step 4: Simplify right side
626,478.19x = 293,942,077,670.53 - Step 5: Solve for x
x = 293,942,077,670.53/626,478.19 - Step 6: Final answer
x = 469,197.62
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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.