Finding the Fourth Proportional to 683,121.30, 1,024,681.95 and 328,049.70
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Solution
The fourth proportional to 683,121.30, 1,024,681.95 and 328,049.70 is: 492,074.55
Step by Step Solution
- Step 1: Write the proportion equation
683,121.30 : 1,024,681.95 = 328,049.70 : x - Step 2: Convert to fraction form
683,121.30/1,024,681.95 = 328,049.70/x - Step 3: Cross multiply
683,121.30x = 1,024,681.95 × 328,049.70 - Step 4: Simplify right side
683,121.30x = 336,146,606,292.92 - Step 5: Solve for x
x = 336,146,606,292.92/683,121.30 - Step 6: Final answer
x = 492,074.55
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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.