Finding the Fourth Proportional to 548,860.10, 821,677.35 and 409,237.70
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Solution
The fourth proportional to 548,860.10, 821,677.35 and 409,237.70 is: 612,654.02
Step by Step Solution
- Step 1: Write the proportion equation
548,860.10 : 821,677.35 = 409,237.70 : x - Step 2: Convert to fraction form
548,860.10/821,677.35 = 409,237.70/x - Step 3: Cross multiply
548,860.10x = 821,677.35 × 409,237.70 - Step 4: Simplify right side
548,860.10x = 336,261,348,856.10 - Step 5: Solve for x
x = 336,261,348,856.10/548,860.10 - Step 6: Final answer
x = 612,654.02
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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.