Finding the Fourth Proportional to 1,213,683.13, 1,819,961.54 and 708,389.54
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Solution
The fourth proportional to 1,213,683.13, 1,819,961.54 and 708,389.54 is: 1,062,255.61
Step by Step Solution
- Step 1: Write the proportion equation
1,213,683.13 : 1,819,961.54 = 708,389.54 : x - Step 2: Convert to fraction form
1,213,683.13/1,819,961.54 = 708,389.54/x - Step 3: Cross multiply
1,213,683.13x = 1,819,961.54 × 708,389.54 - Step 4: Simplify right side
1,213,683.13x = 1,289,241,718,138.29 - Step 5: Solve for x
x = 1,289,241,718,138.29/1,213,683.13 - Step 6: Final answer
x = 1,062,255.61
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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.