Finding the Fourth Proportional to 4,292,098.80, 6,439,145.28 and 1,259,342.16
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Solution
The fourth proportional to 4,292,098.80, 6,439,145.28 and 1,259,342.16 is: 1,889,305.79
Step by Step Solution
- Step 1: Write the proportion equation
4,292,098.80 : 6,439,145.28 = 1,259,342.16 : x - Step 2: Convert to fraction form
4,292,098.80/6,439,145.28 = 1,259,342.16/x - Step 3: Cross multiply
4,292,098.80x = 6,439,145.28 × 1,259,342.16 - Step 4: Simplify right side
4,292,098.80x = 8,109,087,125,469.01 - Step 5: Solve for x
x = 8,109,087,125,469.01/4,292,098.80 - Step 6: Final answer
x = 1,889,305.79
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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.