Finding the Fourth Proportional to 418,686.80, 577,917.88 and 332,798.18
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Solution
The fourth proportional to 418,686.80, 577,917.88 and 332,798.18 is: 459,364.89
Step by Step Solution
- Step 1: Write the proportion equation
418,686.80 : 577,917.88 = 332,798.18 : x - Step 2: Convert to fraction form
418,686.80/577,917.88 = 332,798.18/x - Step 3: Cross multiply
418,686.80x = 577,917.88 × 332,798.18 - Step 4: Simplify right side
418,686.80x = 192,330,016,989.47 - Step 5: Solve for x
x = 192,330,016,989.47/418,686.80 - Step 6: Final answer
x = 459,364.89
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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.