Finding the Fourth Proportional to 517,316.09, 775,747.90 and 260,990.94
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Solution
The fourth proportional to 517,316.09, 775,747.90 and 260,990.94 is: 391,372.28
Step by Step Solution
- Step 1: Write the proportion equation
517,316.09 : 775,747.90 = 260,990.94 : x - Step 2: Convert to fraction form
517,316.09/775,747.90 = 260,990.94/x - Step 3: Cross multiply
517,316.09x = 775,747.90 × 260,990.94 - Step 4: Simplify right side
517,316.09x = 202,463,176,859.32 - Step 5: Solve for x
x = 202,463,176,859.32/517,316.09 - Step 6: Final answer
x = 391,372.28
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.