Finding the Fourth Proportional to 688,375.31, 949,575.43 and 639,664.07
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Solution
The fourth proportional to 688,375.31, 949,575.43 and 639,664.07 is: 882,380.99
Step by Step Solution
- Step 1: Write the proportion equation
688,375.31 : 949,575.43 = 639,664.07 : x - Step 2: Convert to fraction form
688,375.31/949,575.43 = 639,664.07/x - Step 3: Cross multiply
688,375.31x = 949,575.43 × 639,664.07 - Step 4: Simplify right side
688,375.31x = 607,409,284,325.80 - Step 5: Solve for x
x = 607,409,284,325.80/688,375.31 - Step 6: Final answer
x = 882,380.99
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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.