Finding the Fourth Proportional to 428,510.13, 591,349.86 and 234,936.06
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Solution
The fourth proportional to 428,510.13, 591,349.86 and 234,936.06 is: 324,214.99
Step by Step Solution
- Step 1: Write the proportion equation
428,510.13 : 591,349.86 = 234,936.06 : x - Step 2: Convert to fraction form
428,510.13/591,349.86 = 234,936.06/x - Step 3: Cross multiply
428,510.13x = 591,349.86 × 234,936.06 - Step 4: Simplify right side
428,510.13x = 138,929,406,189.95 - Step 5: Solve for x
x = 138,929,406,189.95/428,510.13 - Step 6: Final answer
x = 324,214.99
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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.