Finding the Fourth Proportional to 518,421.36, 777,740.56 and 218,902.80
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Solution
The fourth proportional to 518,421.36, 777,740.56 and 218,902.80 is: 328,400.02
Step by Step Solution
- Step 1: Write the proportion equation
518,421.36 : 777,740.56 = 218,902.80 : x - Step 2: Convert to fraction form
518,421.36/777,740.56 = 218,902.80/x - Step 3: Cross multiply
518,421.36x = 777,740.56 × 218,902.80 - Step 4: Simplify right side
518,421.36x = 170,249,586,257.57 - Step 5: Solve for x
x = 170,249,586,257.57/518,421.36 - Step 6: Final answer
x = 328,400.02
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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.