Finding the Fourth Proportional to 586,617.05, 809,531.53 and 318,345.05
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Solution
The fourth proportional to 586,617.05, 809,531.53 and 318,345.05 is: 439,316.17
Step by Step Solution
- Step 1: Write the proportion equation
586,617.05 : 809,531.53 = 318,345.05 : x - Step 2: Convert to fraction form
586,617.05/809,531.53 = 318,345.05/x - Step 3: Cross multiply
586,617.05x = 809,531.53 × 318,345.05 - Step 4: Simplify right side
586,617.05x = 257,710,356,622.39 - Step 5: Solve for x
x = 257,710,356,622.39/586,617.05 - Step 6: Final answer
x = 439,316.17
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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.