Finding the Fourth Proportional to 638,446.12, 955,303.62 and 511,701.96
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Solution
The fourth proportional to 638,446.12, 955,303.62 and 511,701.96 is: 765,656.99
Step by Step Solution
- Step 1: Write the proportion equation
638,446.12 : 955,303.62 = 511,701.96 : x - Step 2: Convert to fraction form
638,446.12/955,303.62 = 511,701.96/x - Step 3: Cross multiply
638,446.12x = 955,303.62 × 511,701.96 - Step 4: Simplify right side
638,446.12x = 488,830,734,749.10 - Step 5: Solve for x
x = 488,830,734,749.10/638,446.12 - Step 6: Final answer
x = 765,656.99
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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.