Finding the Fourth Proportional to 518,659.30, 777,801.92 and 219,163.09
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Solution
The fourth proportional to 518,659.30, 777,801.92 and 219,163.09 is: 328,665.61
Step by Step Solution
- Step 1: Write the proportion equation
518,659.30 : 777,801.92 = 219,163.09 : x - Step 2: Convert to fraction form
518,659.30/777,801.92 = 219,163.09/x - Step 3: Cross multiply
518,659.30x = 777,801.92 × 219,163.09 - Step 4: Simplify right side
518,659.30x = 170,465,473,417.16 - Step 5: Solve for x
x = 170,465,473,417.16/518,659.30 - Step 6: Final answer
x = 328,665.61
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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.