Finding the Fourth Proportional to 498,376.84, 687,757.62 and 272,021.80
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Solution
The fourth proportional to 498,376.84, 687,757.62 and 272,021.80 is: 375,388.76
Step by Step Solution
- Step 1: Write the proportion equation
498,376.84 : 687,757.62 = 272,021.80 : x - Step 2: Convert to fraction form
498,376.84/687,757.62 = 272,021.80/x - Step 3: Cross multiply
498,376.84x = 687,757.62 × 272,021.80 - Step 4: Simplify right side
498,376.84x = 187,085,065,756.12 - Step 5: Solve for x
x = 187,085,065,756.12/498,376.84 - Step 6: Final answer
x = 375,388.76
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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.