Finding the Fourth Proportional to 1,319,732.50, 1,821,232.06 and 716,120.50
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Solution
The fourth proportional to 1,319,732.50, 1,821,232.06 and 716,120.50 is: 988,246.95
Step by Step Solution
- Step 1: Write the proportion equation
1,319,732.50 : 1,821,232.06 = 716,120.50 : x - Step 2: Convert to fraction form
1,319,732.50/1,821,232.06 = 716,120.50/x - Step 3: Cross multiply
1,319,732.50x = 1,821,232.06 × 716,120.50 - Step 4: Simplify right side
1,319,732.50x = 1,304,221,613,423.23 - Step 5: Solve for x
x = 1,304,221,613,423.23/1,319,732.50 - Step 6: Final answer
x = 988,246.95
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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.