Finding the Fourth Proportional to 722,071.58, 996,525.66 and 399,781.68
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Solution
The fourth proportional to 722,071.58, 996,525.66 and 399,781.68 is: 551,735.75
Step by Step Solution
- Step 1: Write the proportion equation
722,071.58 : 996,525.66 = 399,781.68 : x - Step 2: Convert to fraction form
722,071.58/996,525.66 = 399,781.68/x - Step 3: Cross multiply
722,071.58x = 996,525.66 × 399,781.68 - Step 4: Simplify right side
722,071.58x = 398,392,702,517.91 - Step 5: Solve for x
x = 398,392,702,517.91/722,071.58 - Step 6: Final answer
x = 551,735.75
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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.