Finding the Fourth Proportional to 731,689.92, 1,009,889.76 and 445,302.08
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Solution
The fourth proportional to 731,689.92, 1,009,889.76 and 445,302.08 is: 614,612.83
Step by Step Solution
- Step 1: Write the proportion equation
731,689.92 : 1,009,889.76 = 445,302.08 : x - Step 2: Convert to fraction form
731,689.92/1,009,889.76 = 445,302.08/x - Step 3: Cross multiply
731,689.92x = 1,009,889.76 × 445,302.08 - Step 4: Simplify right side
731,689.92x = 449,706,010,698.70 - Step 5: Solve for x
x = 449,706,010,698.70/731,689.92 - Step 6: Final answer
x = 614,612.83
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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.