Finding the Fourth Proportional to 678,829.12, 1,017,922.56 and 252,070.72
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Solution
The fourth proportional to 678,829.12, 1,017,922.56 and 252,070.72 is: 377,986.84
Step by Step Solution
- Step 1: Write the proportion equation
678,829.12 : 1,017,922.56 = 252,070.72 : x - Step 2: Convert to fraction form
678,829.12/1,017,922.56 = 252,070.72/x - Step 3: Cross multiply
678,829.12x = 1,017,922.56 × 252,070.72 - Step 4: Simplify right side
678,829.12x = 256,588,472,603.44 - Step 5: Solve for x
x = 256,588,472,603.44/678,829.12 - Step 6: Final answer
x = 377,986.84
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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.