Finding the Fourth Proportional to 641,922.99, 885,842.88 and 355,436.93
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Solution
The fourth proportional to 641,922.99, 885,842.88 and 355,436.93 is: 490,496.95
Step by Step Solution
- Step 1: Write the proportion equation
641,922.99 : 885,842.88 = 355,436.93 : x - Step 2: Convert to fraction form
641,922.99/885,842.88 = 355,436.93/x - Step 3: Cross multiply
641,922.99x = 885,842.88 × 355,436.93 - Step 4: Simplify right side
641,922.99x = 314,861,269,300.34 - Step 5: Solve for x
x = 314,861,269,300.34/641,922.99 - Step 6: Final answer
x = 490,496.95
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1.5x scale
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.