Finding the Fourth Proportional to 1,122,397.52, 1,549,418.37 and 715,057.88
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Solution
The fourth proportional to 1,122,397.52, 1,549,418.37 and 715,057.88 is: 987,104.65
Step by Step Solution
- Step 1: Write the proportion equation
1,122,397.52 : 1,549,418.37 = 715,057.88 : x - Step 2: Convert to fraction form
1,122,397.52/1,549,418.37 = 715,057.88/x - Step 3: Cross multiply
1,122,397.52x = 1,549,418.37 × 715,057.88 - Step 4: Simplify right side
1,122,397.52x = 1,107,923,814,885.26 - Step 5: Solve for x
x = 1,107,923,814,885.26/1,122,397.52 - Step 6: Final answer
x = 987,104.65
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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.