Finding the Fourth Proportional to 527,409.79, 727,810.54 and 309,614.99
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Solution
The fourth proportional to 527,409.79, 727,810.54 and 309,614.99 is: 427,259.90
Step by Step Solution
- Step 1: Write the proportion equation
527,409.79 : 727,810.54 = 309,614.99 : x - Step 2: Convert to fraction form
527,409.79/727,810.54 = 309,614.99/x - Step 3: Cross multiply
527,409.79x = 727,810.54 × 309,614.99 - Step 4: Simplify right side
527,409.79x = 225,341,053,615.63 - Step 5: Solve for x
x = 225,341,053,615.63/527,409.79 - Step 6: Final answer
x = 427,259.90
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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.