Finding the Fourth Proportional to 605,251.20, 908,314.20 and 338,728.80
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Solution
The fourth proportional to 605,251.20, 908,314.20 and 338,728.80 is: 508,337.99
Step by Step Solution
- Step 1: Write the proportion equation
605,251.20 : 908,314.20 = 338,728.80 : x - Step 2: Convert to fraction form
605,251.20/908,314.20 = 338,728.80/x - Step 3: Cross multiply
605,251.20x = 908,314.20 × 338,728.80 - Step 4: Simplify right side
605,251.20x = 307,672,178,988.96 - Step 5: Solve for x
x = 307,672,178,988.96/605,251.20 - Step 6: Final answer
x = 508,337.99
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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.