Finding the Fourth Proportional to 728,768.02, 1,005,701.63 and 406,498.99
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Solution
The fourth proportional to 728,768.02, 1,005,701.63 and 406,498.99 is: 560,969.59
Step by Step Solution
- Step 1: Write the proportion equation
728,768.02 : 1,005,701.63 = 406,498.99 : x - Step 2: Convert to fraction form
728,768.02/1,005,701.63 = 406,498.99/x - Step 3: Cross multiply
728,768.02x = 1,005,701.63 × 406,498.99 - Step 4: Simplify right side
728,768.02x = 408,816,696,836.35 - Step 5: Solve for x
x = 408,816,696,836.35/728,768.02 - Step 6: Final answer
x = 560,969.59
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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.