Finding the Fourth Proportional to 644,369.07, 889,204.73 and 357,907.53
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Solution
The fourth proportional to 644,369.07, 889,204.73 and 357,907.53 is: 493,898.73
Step by Step Solution
- Step 1: Write the proportion equation
644,369.07 : 889,204.73 = 357,907.53 : x - Step 2: Convert to fraction form
644,369.07/889,204.73 = 357,907.53/x - Step 3: Cross multiply
644,369.07x = 889,204.73 × 357,907.53 - Step 4: Simplify right side
644,369.07x = 318,253,066,789.08 - Step 5: Solve for x
x = 318,253,066,789.08/644,369.07 - Step 6: Final answer
x = 493,898.73
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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.