Finding the Fourth Proportional to 428,569.04, 591,272.78 and 247,326.81
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Solution
The fourth proportional to 428,569.04, 591,272.78 and 247,326.81 is: 341,222.99
Step by Step Solution
- Step 1: Write the proportion equation
428,569.04 : 591,272.78 = 247,326.81 : x - Step 2: Convert to fraction form
428,569.04/591,272.78 = 247,326.81/x - Step 3: Cross multiply
428,569.04x = 591,272.78 × 247,326.81 - Step 4: Simplify right side
428,569.04x = 146,237,609,280.60 - Step 5: Solve for x
x = 146,237,609,280.60/428,569.04 - Step 6: Final answer
x = 341,222.99
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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.