Finding the Fourth Proportional to 840,515.19, 1,159,905.47 and 477,939.08
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Solution
The fourth proportional to 840,515.19, 1,159,905.47 and 477,939.08 is: 659,552.80
Step by Step Solution
- Step 1: Write the proportion equation
840,515.19 : 1,159,905.47 = 477,939.08 : x - Step 2: Convert to fraction form
840,515.19/1,159,905.47 = 477,939.08/x - Step 3: Cross multiply
840,515.19x = 1,159,905.47 × 477,939.08 - Step 4: Simplify right side
840,515.19x = 554,364,147,419.24 - Step 5: Solve for x
x = 554,364,147,419.24/840,515.19 - Step 6: Final answer
x = 659,552.80
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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.