Finding the Fourth Proportional to 491,812.20, 737,718.30 and 442,045.80
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Solution
The fourth proportional to 491,812.20, 737,718.30 and 442,045.80 is: 663,068.70
Step by Step Solution
- Step 1: Write the proportion equation
491,812.20 : 737,718.30 = 442,045.80 : x - Step 2: Convert to fraction form
491,812.20/737,718.30 = 442,045.80/x - Step 3: Cross multiply
491,812.20x = 737,718.30 × 442,045.80 - Step 4: Simplify right side
491,812.20x = 326,105,276,098.14 - Step 5: Solve for x
x = 326,105,276,098.14/491,812.20 - Step 6: Final answer
x = 663,068.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.