Finding the Fourth Proportional to 406,721.62, 609,959.60 and 122,336.67
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Solution
The fourth proportional to 406,721.62, 609,959.60 and 122,336.67 is: 183,468.07
Step by Step Solution
- Step 1: Write the proportion equation
406,721.62 : 609,959.60 = 122,336.67 : x - Step 2: Convert to fraction form
406,721.62/609,959.60 = 122,336.67/x - Step 3: Cross multiply
406,721.62x = 609,959.60 × 122,336.67 - Step 4: Simplify right side
406,721.62x = 74,620,428,280.04 - Step 5: Solve for x
x = 74,620,428,280.04/406,721.62 - Step 6: Final answer
x = 183,468.07
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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.