Finding the Fourth Proportional to 722,177.78, 996,593.18 and 399,880.94
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Solution
The fourth proportional to 722,177.78, 996,593.18 and 399,880.94 is: 551,828.96
Step by Step Solution
- Step 1: Write the proportion equation
722,177.78 : 996,593.18 = 399,880.94 : x - Step 2: Convert to fraction form
722,177.78/996,593.18 = 399,880.94/x - Step 3: Cross multiply
722,177.78x = 996,593.18 × 399,880.94 - Step 4: Simplify right side
722,177.78x = 398,518,610,633.62 - Step 5: Solve for x
x = 398,518,610,633.62/722,177.78 - Step 6: Final answer
x = 551,828.96
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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.