Finding the Fourth Proportional to 518,938.36, 716,134.62 and 280,474.36
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Solution
The fourth proportional to 518,938.36, 716,134.62 and 280,474.36 is: 387,054.45
Step by Step Solution
- Step 1: Write the proportion equation
518,938.36 : 716,134.62 = 280,474.36 : x - Step 2: Convert to fraction form
518,938.36/716,134.62 = 280,474.36/x - Step 3: Cross multiply
518,938.36x = 716,134.62 × 280,474.36 - Step 4: Simplify right side
518,938.36x = 200,857,399,218.34 - Step 5: Solve for x
x = 200,857,399,218.34/518,938.36 - Step 6: Final answer
x = 387,054.45
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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.