Finding the Fourth Proportional to 840,894.79, 1,160,282.02 and 496,786.75
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Solution
The fourth proportional to 840,894.79, 1,160,282.02 and 496,786.75 is: 685,475.45
Step by Step Solution
- Step 1: Write the proportion equation
840,894.79 : 1,160,282.02 = 496,786.75 : x - Step 2: Convert to fraction form
840,894.79/1,160,282.02 = 496,786.75/x - Step 3: Cross multiply
840,894.79x = 1,160,282.02 × 496,786.75 - Step 4: Simplify right side
840,894.79x = 576,412,733,799.24 - Step 5: Solve for x
x = 576,412,733,799.24/840,894.79 - Step 6: Final answer
x = 685,475.45
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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.