Finding the Fourth Proportional to 517,343.79, 713,927.12 and 290,988.75
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Solution
The fourth proportional to 517,343.79, 713,927.12 and 290,988.75 is: 401,560.36
Step by Step Solution
- Step 1: Write the proportion equation
517,343.79 : 713,927.12 = 290,988.75 : x - Step 2: Convert to fraction form
517,343.79/713,927.12 = 290,988.75/x - Step 3: Cross multiply
517,343.79x = 713,927.12 × 290,988.75 - Step 4: Simplify right side
517,343.79x = 207,744,758,784.96 - Step 5: Solve for x
x = 207,744,758,784.96/517,343.79 - Step 6: Final answer
x = 401,560.36
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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.