Finding the Fourth Proportional to 741,625.20, 1,112,437.80 and 209,139.30
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Solution
The fourth proportional to 741,625.20, 1,112,437.80 and 209,139.30 is: 313,708.95
Step by Step Solution
- Step 1: Write the proportion equation
741,625.20 : 1,112,437.80 = 209,139.30 : x - Step 2: Convert to fraction form
741,625.20/1,112,437.80 = 209,139.30/x - Step 3: Cross multiply
741,625.20x = 1,112,437.80 × 209,139.30 - Step 4: Simplify right side
741,625.20x = 232,654,462,785.54 - Step 5: Solve for x
x = 232,654,462,785.54/741,625.20 - Step 6: Final answer
x = 313,708.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.