Finding the Fourth Proportional to 722,089.94, 996,515.27 and 399,800.05
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Solution
The fourth proportional to 722,089.94, 996,515.27 and 399,800.05 is: 551,741.31
Step by Step Solution
- Step 1: Write the proportion equation
722,089.94 : 996,515.27 = 399,800.05 : x - Step 2: Convert to fraction form
722,089.94/996,515.27 = 399,800.05/x - Step 3: Cross multiply
722,089.94x = 996,515.27 × 399,800.05 - Step 4: Simplify right side
722,089.94x = 398,406,847,790.19 - Step 5: Solve for x
x = 398,406,847,790.19/722,089.94 - Step 6: Final answer
x = 551,741.31
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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.