Finding the Fourth Proportional to 648,449.12, 894,856.35 and 376,583.84
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Solution
The fourth proportional to 648,449.12, 894,856.35 and 376,583.84 is: 519,683.70
Step by Step Solution
- Step 1: Write the proportion equation
648,449.12 : 894,856.35 = 376,583.84 : x - Step 2: Convert to fraction form
648,449.12/894,856.35 = 376,583.84/x - Step 3: Cross multiply
648,449.12x = 894,856.35 × 376,583.84 - Step 4: Simplify right side
648,449.12x = 336,988,440,531.38 - Step 5: Solve for x
x = 336,988,440,531.38/648,449.12 - Step 6: Final answer
x = 519,683.70
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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.