Finding the Fourth Proportional to 406,258.74, 609,387.37 and 121,949.01
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Solution
The fourth proportional to 406,258.74, 609,387.37 and 121,949.01 is: 182,923.29
Step by Step Solution
- Step 1: Write the proportion equation
406,258.74 : 609,387.37 = 121,949.01 : x - Step 2: Convert to fraction form
406,258.74/609,387.37 = 121,949.01/x - Step 3: Cross multiply
406,258.74x = 609,387.37 × 121,949.01 - Step 4: Simplify right side
406,258.74x = 74,314,186,173.13 - Step 5: Solve for x
x = 74,314,186,173.13/406,258.74 - Step 6: Final answer
x = 182,923.29
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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.