Finding the Fourth Proportional to 1,398,736.22, 1,930,252.71 and 786,888.80
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Solution
The fourth proportional to 1,398,736.22, 1,930,252.71 and 786,888.80 is: 1,085,904.70
Step by Step Solution
- Step 1: Write the proportion equation
1,398,736.22 : 1,930,252.71 = 786,888.80 : x - Step 2: Convert to fraction form
1,398,736.22/1,930,252.71 = 786,888.80/x - Step 3: Cross multiply
1,398,736.22x = 1,930,252.71 × 786,888.80 - Step 4: Simplify right side
1,398,736.22x = 1,518,894,237,996.13 - Step 5: Solve for x
x = 1,518,894,237,996.13/1,398,736.22 - Step 6: Final answer
x = 1,085,904.70
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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.