Finding the Fourth Proportional to 623,696.99, 860,330.23 and 393,848.75
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Solution
The fourth proportional to 623,696.99, 860,330.23 and 393,848.75 is: 543,276.62
Step by Step Solution
- Step 1: Write the proportion equation
623,696.99 : 860,330.23 = 393,848.75 : x - Step 2: Convert to fraction form
623,696.99/860,330.23 = 393,848.75/x - Step 3: Cross multiply
623,696.99x = 860,330.23 × 393,848.75 - Step 4: Simplify right side
623,696.99x = 338,839,986,838.92 - Step 5: Solve for x
x = 338,839,986,838.92/623,696.99 - Step 6: Final answer
x = 543,276.62
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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.