Finding the Fourth Proportional to 511,848.60, 706,349.12 and 282,420.20
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Solution
The fourth proportional to 511,848.60, 706,349.12 and 282,420.20 is: 389,738.80
Step by Step Solution
- Step 1: Write the proportion equation
511,848.60 : 706,349.12 = 282,420.20 : x - Step 2: Convert to fraction form
511,848.60/706,349.12 = 282,420.20/x - Step 3: Cross multiply
511,848.60x = 706,349.12 × 282,420.20 - Step 4: Simplify right side
511,848.60x = 199,487,259,740.22 - Step 5: Solve for x
x = 199,487,259,740.22/511,848.60 - Step 6: Final answer
x = 389,738.80
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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.