Finding the Fourth Proportional to 1,319,913.98, 1,821,481.30 and 716,301.98
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Solution
The fourth proportional to 1,319,913.98, 1,821,481.30 and 716,301.98 is: 988,496.74
Step by Step Solution
- Step 1: Write the proportion equation
1,319,913.98 : 1,821,481.30 = 716,301.98 : x - Step 2: Convert to fraction form
1,319,913.98/1,821,481.30 = 716,301.98/x - Step 3: Cross multiply
1,319,913.98x = 1,821,481.30 × 716,301.98 - Step 4: Simplify right side
1,319,913.98x = 1,304,730,668,572.73 - Step 5: Solve for x
x = 1,304,730,668,572.73/1,319,913.98 - Step 6: Final answer
x = 988,496.74
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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.