Finding the Fourth Proportional to 758,603.75, 1,138,465.58 and 359,243.88
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Solution
The fourth proportional to 758,603.75, 1,138,465.58 and 359,243.88 is: 539,130.99
Step by Step Solution
- Step 1: Write the proportion equation
758,603.75 : 1,138,465.58 = 359,243.88 : x - Step 2: Convert to fraction form
758,603.75/1,138,465.58 = 359,243.88/x - Step 3: Cross multiply
758,603.75x = 1,138,465.58 × 359,243.88 - Step 4: Simplify right side
758,603.75x = 408,986,790,409.43 - Step 5: Solve for x
x = 408,986,790,409.43/758,603.75 - Step 6: Final answer
x = 539,130.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.