Finding the Fourth Proportional to 644,272.97, 889,541.53 and 402,664.14
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Solution
The fourth proportional to 644,272.97, 889,541.53 and 402,664.14 is: 555,954.53
Step by Step Solution
- Step 1: Write the proportion equation
644,272.97 : 889,541.53 = 402,664.14 : x - Step 2: Convert to fraction form
644,272.97/889,541.53 = 402,664.14/x - Step 3: Cross multiply
644,272.97x = 889,541.53 × 402,664.14 - Step 4: Simplify right side
644,272.97x = 358,186,474,165.07 - Step 5: Solve for x
x = 358,186,474,165.07/644,272.97 - Step 6: Final answer
x = 555,954.53
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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.