Finding the Fourth Proportional to 890,531.76, 1,228,948.72 and 482,646.68
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Solution
The fourth proportional to 890,531.76, 1,228,948.72 and 482,646.68 is: 666,060.49
Step by Step Solution
- Step 1: Write the proportion equation
890,531.76 : 1,228,948.72 = 482,646.68 : x - Step 2: Convert to fraction form
890,531.76/1,228,948.72 = 482,646.68/x - Step 3: Cross multiply
890,531.76x = 1,228,948.72 × 482,646.68 - Step 4: Simplify right side
890,531.76x = 593,148,019,598.25 - Step 5: Solve for x
x = 593,148,019,598.25/890,531.76 - Step 6: Final answer
x = 666,060.49
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.