Finding the Fourth Proportional to 518,616.99, 715,738.68 and 314,719.79
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Solution
The fourth proportional to 518,616.99, 715,738.68 and 314,719.79 is: 434,341.97
Step by Step Solution
- Step 1: Write the proportion equation
518,616.99 : 715,738.68 = 314,719.79 : x - Step 2: Convert to fraction form
518,616.99/715,738.68 = 314,719.79/x - Step 3: Cross multiply
518,616.99x = 715,738.68 × 314,719.79 - Step 4: Simplify right side
518,616.99x = 225,257,125,490.88 - Step 5: Solve for x
x = 225,257,125,490.88/518,616.99 - Step 6: Final answer
x = 434,341.97
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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.