Finding the Fourth Proportional to 389,409.44, 536,970.12 and 307,593.88
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Solution
The fourth proportional to 389,409.44, 536,970.12 and 307,593.88 is: 424,151.82
Step by Step Solution
- Step 1: Write the proportion equation
389,409.44 : 536,970.12 = 307,593.88 : x - Step 2: Convert to fraction form
389,409.44/536,970.12 = 307,593.88/x - Step 3: Cross multiply
389,409.44x = 536,970.12 × 307,593.88 - Step 4: Simplify right side
389,409.44x = 165,168,722,654.87 - Step 5: Solve for x
x = 165,168,722,654.87/389,409.44 - Step 6: Final answer
x = 424,151.82
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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.