Finding the Fourth Proportional to 521,744.68, 720,598.98 and 351,686.44
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Solution
The fourth proportional to 521,744.68, 720,598.98 and 351,686.44 is: 485,725.87
Step by Step Solution
- Step 1: Write the proportion equation
521,744.68 : 720,598.98 = 351,686.44 : x - Step 2: Convert to fraction form
521,744.68/720,598.98 = 351,686.44/x - Step 3: Cross multiply
521,744.68x = 720,598.98 × 351,686.44 - Step 4: Simplify right side
521,744.68x = 253,424,889,943.83 - Step 5: Solve for x
x = 253,424,889,943.83/521,744.68 - Step 6: Final answer
x = 485,725.87
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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.