Finding the Fourth Proportional to 420,573.36, 580,369.04 and 229,549.68
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Solution
The fourth proportional to 420,573.36, 580,369.04 and 229,549.68 is: 316,766.44
Step by Step Solution
- Step 1: Write the proportion equation
420,573.36 : 580,369.04 = 229,549.68 : x - Step 2: Convert to fraction form
420,573.36/580,369.04 = 229,549.68/x - Step 3: Cross multiply
420,573.36x = 580,369.04 × 229,549.68 - Step 4: Simplify right side
420,573.36x = 133,223,527,413.91 - Step 5: Solve for x
x = 133,223,527,413.91/420,573.36 - Step 6: Final answer
x = 316,766.44
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1.5x scale
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.