Finding the Fourth Proportional to 1,589,722.12, 2,199,592.92 and 1,386,197.47
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Solution
The fourth proportional to 1,589,722.12, 2,199,592.92 and 1,386,197.47 is: 1,917,989.38
Step by Step Solution
- Step 1: Write the proportion equation
1,589,722.12 : 2,199,592.92 = 1,386,197.47 : x - Step 2: Convert to fraction form
1,589,722.12/2,199,592.92 = 1,386,197.47/x - Step 3: Cross multiply
1,589,722.12x = 2,199,592.92 × 1,386,197.47 - Step 4: Simplify right side
1,589,722.12x = 3,049,070,140,733.91 - Step 5: Solve for x
x = 3,049,070,140,733.91/1,589,722.12 - Step 6: Final answer
x = 1,917,989.38
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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.