Finding the Fourth Proportional to 639,267.95, 882,187.96 and 352,785.99
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Solution
The fourth proportional to 639,267.95, 882,187.96 and 352,785.99 is: 486,843.66
Step by Step Solution
- Step 1: Write the proportion equation
639,267.95 : 882,187.96 = 352,785.99 : x - Step 2: Convert to fraction form
639,267.95/882,187.96 = 352,785.99/x - Step 3: Cross multiply
639,267.95x = 882,187.96 × 352,785.99 - Step 4: Simplify right side
639,267.95x = 311,223,546,659.81 - Step 5: Solve for x
x = 311,223,546,659.81/639,267.95 - Step 6: Final answer
x = 486,843.66
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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.