Finding the Fourth Proportional to 621,414.36, 931,475.16 and 421,750.98
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Solution
The fourth proportional to 621,414.36, 931,475.16 and 421,750.98 is: 632,187.77
Step by Step Solution
- Step 1: Write the proportion equation
621,414.36 : 931,475.16 = 421,750.98 : x - Step 2: Convert to fraction form
621,414.36/931,475.16 = 421,750.98/x - Step 3: Cross multiply
621,414.36x = 931,475.16 × 421,750.98 - Step 4: Simplify right side
621,414.36x = 392,850,561,575.66 - Step 5: Solve for x
x = 392,850,561,575.66/621,414.36 - Step 6: Final answer
x = 632,187.77
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.