Finding the Fourth Proportional to 841,689.08, 1,262,538.44 and 280,721.96
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Solution
The fourth proportional to 841,689.08, 1,262,538.44 and 280,721.96 is: 421,084.55
Step by Step Solution
- Step 1: Write the proportion equation
841,689.08 : 1,262,538.44 = 280,721.96 : x - Step 2: Convert to fraction form
841,689.08/1,262,538.44 = 280,721.96/x - Step 3: Cross multiply
841,689.08x = 1,262,538.44 × 280,721.96 - Step 4: Simplify right side
841,689.08x = 354,422,265,452.14 - Step 5: Solve for x
x = 354,422,265,452.14/841,689.08 - Step 6: Final answer
x = 421,084.55
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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.