Finding the Fourth Proportional to 1,908,117.21, 2,633,232.47 and 1,092,317.61
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Solution
The fourth proportional to 1,908,117.21, 2,633,232.47 and 1,092,317.61 is: 1,507,415.88
Step by Step Solution
- Step 1: Write the proportion equation
1,908,117.21 : 2,633,232.47 = 1,092,317.61 : x - Step 2: Convert to fraction form
1,908,117.21/2,633,232.47 = 1,092,317.61/x - Step 3: Cross multiply
1,908,117.21x = 2,633,232.47 × 1,092,317.61 - Step 4: Simplify right side
1,908,117.21x = 2,876,326,192,743.21 - Step 5: Solve for x
x = 2,876,326,192,743.21/1,908,117.21 - Step 6: Final answer
x = 1,507,415.88
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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.