Finding the Fourth Proportional to 639,366.60, 882,263.09 and 352,868.19
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Solution
The fourth proportional to 639,366.60, 882,263.09 and 352,868.19 is: 486,923.43
Step by Step Solution
- Step 1: Write the proportion equation
639,366.60 : 882,263.09 = 352,868.19 : x - Step 2: Convert to fraction form
639,366.60/882,263.09 = 352,868.19/x - Step 3: Cross multiply
639,366.60x = 882,263.09 × 352,868.19 - Step 4: Simplify right side
639,366.60x = 311,322,580,554.28 - Step 5: Solve for x
x = 311,322,580,554.28/639,366.60 - Step 6: Final answer
x = 486,923.43
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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.