Finding the Fourth Proportional to 1,122,408.94, 1,549,434.24 and 715,069.38
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Solution
The fourth proportional to 1,122,408.94, 1,549,434.24 and 715,069.38 is: 987,120.60
Step by Step Solution
- Step 1: Write the proportion equation
1,122,408.94 : 1,549,434.24 = 715,069.38 : x - Step 2: Convert to fraction form
1,122,408.94/1,549,434.24 = 715,069.38/x - Step 3: Cross multiply
1,122,408.94x = 1,549,434.24 × 715,069.38 - Step 4: Simplify right side
1,122,408.94x = 1,107,952,981,347.57 - Step 5: Solve for x
x = 1,107,952,981,347.57/1,122,408.94 - Step 6: Final answer
x = 987,120.60
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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.