Finding the Fourth Proportional to 644,368.66, 889,204.04 and 357,907.04
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Solution
The fourth proportional to 644,368.66, 889,204.04 and 357,907.04 is: 493,897.99
Step by Step Solution
- Step 1: Write the proportion equation
644,368.66 : 889,204.04 = 357,907.04 : x - Step 2: Convert to fraction form
644,368.66/889,204.04 = 357,907.04/x - Step 3: Cross multiply
644,368.66x = 889,204.04 × 357,907.04 - Step 4: Simplify right side
644,368.66x = 318,252,385,912.44 - Step 5: Solve for x
x = 318,252,385,912.44/644,368.66 - Step 6: Final answer
x = 493,897.99
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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.