Finding the Fourth Proportional to 515,812.20, 773,718.30 and 403,837.80
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Solution
The fourth proportional to 515,812.20, 773,718.30 and 403,837.80 is: 605,756.70
Step by Step Solution
- Step 1: Write the proportion equation
515,812.20 : 773,718.30 = 403,837.80 : x - Step 2: Convert to fraction form
515,812.20/773,718.30 = 403,837.80/x - Step 3: Cross multiply
515,812.20x = 773,718.30 × 403,837.80 - Step 4: Simplify right side
515,812.20x = 312,456,696,091.74 - Step 5: Solve for x
x = 312,456,696,091.74/515,812.20 - Step 6: Final answer
x = 605,756.70
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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.