Finding the Fourth Proportional to 665,546.24, 918,641.84 and 393,708.53
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Solution
The fourth proportional to 665,546.24, 918,641.84 and 393,708.53 is: 543,429.00
Step by Step Solution
- Step 1: Write the proportion equation
665,546.24 : 918,641.84 = 393,708.53 : x - Step 2: Convert to fraction form
665,546.24/918,641.84 = 393,708.53/x - Step 3: Cross multiply
665,546.24x = 918,641.84 × 393,708.53 - Step 4: Simplify right side
665,546.24x = 361,677,128,750.96 - Step 5: Solve for x
x = 361,677,128,750.96/665,546.24 - Step 6: Final answer
x = 543,429.00
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.