Finding the Fourth Proportional to 819,527.70, 1,229,291.55 and 653,639.70
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Solution
The fourth proportional to 819,527.70, 1,229,291.55 and 653,639.70 is: 980,459.55
Step by Step Solution
- Step 1: Write the proportion equation
819,527.70 : 1,229,291.55 = 653,639.70 : x - Step 2: Convert to fraction form
819,527.70/1,229,291.55 = 653,639.70/x - Step 3: Cross multiply
819,527.70x = 1,229,291.55 × 653,639.70 - Step 4: Simplify right side
819,527.70x = 803,513,759,954.54 - Step 5: Solve for x
x = 803,513,759,954.54/819,527.70 - Step 6: Final answer
x = 980,459.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.