Finding the Fourth Proportional to 786,271.28, 1,084,793.35 and 640,826.96
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Solution
The fourth proportional to 786,271.28, 1,084,793.35 and 640,826.96 is: 884,128.48
Step by Step Solution
- Step 1: Write the proportion equation
786,271.28 : 1,084,793.35 = 640,826.96 : x - Step 2: Convert to fraction form
786,271.28/1,084,793.35 = 640,826.96/x - Step 3: Cross multiply
786,271.28x = 1,084,793.35 × 640,826.96 - Step 4: Simplify right side
786,271.28x = 695,164,825,818.63 - Step 5: Solve for x
x = 695,164,825,818.63/786,271.28 - Step 6: Final answer
x = 884,128.48
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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.