Finding the Fourth Proportional to 687,460.50, 948,701.97 and 385,660.98
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Solution
The fourth proportional to 687,460.50, 948,701.97 and 385,660.98 is: 532,215.79
Step by Step Solution
- Step 1: Write the proportion equation
687,460.50 : 948,701.97 = 385,660.98 : x - Step 2: Convert to fraction form
687,460.50/948,701.97 = 385,660.98/x - Step 3: Cross multiply
687,460.50x = 948,701.97 × 385,660.98 - Step 4: Simplify right side
687,460.50x = 365,877,331,478.13 - Step 5: Solve for x
x = 365,877,331,478.13/687,460.50 - Step 6: Final answer
x = 532,215.79
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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.