Finding the Fourth Proportional to 515,603.19, 711,537.26 and 289,253.55
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Solution
The fourth proportional to 515,603.19, 711,537.26 and 289,253.55 is: 399,172.62
Step by Step Solution
- Step 1: Write the proportion equation
515,603.19 : 711,537.26 = 289,253.55 : x - Step 2: Convert to fraction form
515,603.19/711,537.26 = 289,253.55/x - Step 3: Cross multiply
515,603.19x = 711,537.26 × 289,253.55 - Step 4: Simplify right side
515,603.19x = 205,814,678,412.27 - Step 5: Solve for x
x = 205,814,678,412.27/515,603.19 - Step 6: Final answer
x = 399,172.62
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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.