Finding the Fourth Proportional to 439,616.57, 606,657.84 and 243,391.79
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Solution
The fourth proportional to 439,616.57, 606,657.84 and 243,391.79 is: 335,873.46
Step by Step Solution
- Step 1: Write the proportion equation
439,616.57 : 606,657.84 = 243,391.79 : x - Step 2: Convert to fraction form
439,616.57/606,657.84 = 243,391.79/x - Step 3: Cross multiply
439,616.57x = 606,657.84 × 243,391.79 - Step 4: Simplify right side
439,616.57x = 147,655,538,957.38 - Step 5: Solve for x
x = 147,655,538,957.38/439,616.57 - Step 6: Final answer
x = 335,873.46
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1.5x scale
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.