Finding the Fourth Proportional to 605,863.80, 908,795.70 and 487,765.80
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Solution
The fourth proportional to 605,863.80, 908,795.70 and 487,765.80 is: 731,648.70
Step by Step Solution
- Step 1: Write the proportion equation
605,863.80 : 908,795.70 = 487,765.80 : x - Step 2: Convert to fraction form
605,863.80/908,795.70 = 487,765.80/x - Step 3: Cross multiply
605,863.80x = 908,795.70 × 487,765.80 - Step 4: Simplify right side
605,863.80x = 443,279,461,647.06 - Step 5: Solve for x
x = 443,279,461,647.06/605,863.80 - Step 6: Final answer
x = 731,648.70
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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.