Finding the Fourth Proportional to 676,739.93, 933,838.99 and 390,204.66
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Solution
The fourth proportional to 676,739.93, 933,838.99 and 390,204.66 is: 538,446.62
Step by Step Solution
- Step 1: Write the proportion equation
676,739.93 : 933,838.99 = 390,204.66 : x - Step 2: Convert to fraction form
676,739.93/933,838.99 = 390,204.66/x - Step 3: Cross multiply
676,739.93x = 933,838.99 × 390,204.66 - Step 4: Simplify right side
676,739.93x = 364,388,325,056.14 - Step 5: Solve for x
x = 364,388,325,056.14/676,739.93 - Step 6: Final answer
x = 538,446.62
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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.