Finding the Fourth Proportional to 406,506.59, 609,638.36 and 122,121.08
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Solution
The fourth proportional to 406,506.59, 609,638.36 and 122,121.08 is: 183,145.11
Step by Step Solution
- Step 1: Write the proportion equation
406,506.59 : 609,638.36 = 122,121.08 : x - Step 2: Convert to fraction form
406,506.59/609,638.36 = 122,121.08/x - Step 3: Cross multiply
406,506.59x = 609,638.36 × 122,121.08 - Step 4: Simplify right side
406,506.59x = 74,449,691,273.83 - Step 5: Solve for x
x = 74,449,691,273.83/406,506.59 - Step 6: Final answer
x = 183,145.11
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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.