Finding the Fourth Proportional to 428,690.51, 591,641.62 and 247,451.09
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Solution
The fourth proportional to 428,690.51, 591,641.62 and 247,451.09 is: 341,510.62
Step by Step Solution
- Step 1: Write the proportion equation
428,690.51 : 591,641.62 = 247,451.09 : x - Step 2: Convert to fraction form
428,690.51/591,641.62 = 247,451.09/x - Step 3: Cross multiply
428,690.51x = 591,641.62 × 247,451.09 - Step 4: Simplify right side
428,690.51x = 146,402,360,181.53 - Step 5: Solve for x
x = 146,402,360,181.53/428,690.51 - Step 6: Final answer
x = 341,510.62
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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.