Finding the Fourth Proportional to 428,710.24, 591,577.50 and 247,480.55
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Solution
The fourth proportional to 428,710.24, 591,577.50 and 247,480.55 is: 341,498.55
Step by Step Solution
- Step 1: Write the proportion equation
428,710.24 : 591,577.50 = 247,480.55 : x - Step 2: Convert to fraction form
428,710.24/591,577.50 = 247,480.55/x - Step 3: Cross multiply
428,710.24x = 591,577.50 × 247,480.55 - Step 4: Simplify right side
428,710.24x = 146,403,925,067.63 - Step 5: Solve for x
x = 146,403,925,067.63/428,710.24 - Step 6: Final answer
x = 341,498.55
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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.