Finding the Fourth Proportional to 1,687,489.45, 2,531,497.13 and 549,987.75
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Solution
The fourth proportional to 1,687,489.45, 2,531,497.13 and 549,987.75 is: 825,067.32
Step by Step Solution
- Step 1: Write the proportion equation
1,687,489.45 : 2,531,497.13 = 549,987.75 : x - Step 2: Convert to fraction form
1,687,489.45/2,531,497.13 = 549,987.75/x - Step 3: Cross multiply
1,687,489.45x = 2,531,497.13 × 549,987.75 - Step 4: Simplify right side
1,687,489.45x = 1,392,292,401,306.05 - Step 5: Solve for x
x = 1,392,292,401,306.05/1,687,489.45 - Step 6: Final answer
x = 825,067.32
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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.