Finding the Fourth Proportional to 778,825.13, 1,168,237.69 and 217,859.63
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Solution
The fourth proportional to 778,825.13, 1,168,237.69 and 217,859.63 is: 326,789.44
Step by Step Solution
- Step 1: Write the proportion equation
778,825.13 : 1,168,237.69 = 217,859.63 : x - Step 2: Convert to fraction form
778,825.13/1,168,237.69 = 217,859.63/x - Step 3: Cross multiply
778,825.13x = 1,168,237.69 × 217,859.63 - Step 4: Simplify right side
778,825.13x = 254,511,824,509.62 - Step 5: Solve for x
x = 254,511,824,509.62/778,825.13 - Step 6: Final answer
x = 326,789.44
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.