Finding the Fourth Proportional to 398,590.02, 550,207.80 and 292,006.62
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Solution
The fourth proportional to 398,590.02, 550,207.80 and 292,006.62 is: 403,081.64
Step by Step Solution
- Step 1: Write the proportion equation
398,590.02 : 550,207.80 = 292,006.62 : x - Step 2: Convert to fraction form
398,590.02/550,207.80 = 292,006.62/x - Step 3: Cross multiply
398,590.02x = 550,207.80 × 292,006.62 - Step 4: Simplify right side
398,590.02x = 160,664,319,975.64 - Step 5: Solve for x
x = 160,664,319,975.64/398,590.02 - Step 6: Final answer
x = 403,081.64
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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.