Finding the Fourth Proportional to 1,686,684.64, 2,326,239.12 and 1,203,095.20
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Solution
The fourth proportional to 1,686,684.64, 2,326,239.12 and 1,203,095.20 is: 1,659,282.98
Step by Step Solution
- Step 1: Write the proportion equation
1,686,684.64 : 2,326,239.12 = 1,203,095.20 : x - Step 2: Convert to fraction form
1,686,684.64/2,326,239.12 = 1,203,095.20/x - Step 3: Cross multiply
1,686,684.64x = 2,326,239.12 × 1,203,095.20 - Step 4: Simplify right side
1,686,684.64x = 2,798,687,119,324.22 - Step 5: Solve for x
x = 2,798,687,119,324.22/1,686,684.64 - Step 6: Final answer
x = 1,659,282.98
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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.