Finding the Fourth Proportional to 1,118,258.84, 1,542,992.20 and 659,516.96
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Solution
The fourth proportional to 1,118,258.84, 1,542,992.20 and 659,516.96 is: 910,012.50
Step by Step Solution
- Step 1: Write the proportion equation
1,118,258.84 : 1,542,992.20 = 659,516.96 : x - Step 2: Convert to fraction form
1,118,258.84/1,542,992.20 = 659,516.96/x - Step 3: Cross multiply
1,118,258.84x = 1,542,992.20 × 659,516.96 - Step 4: Simplify right side
1,118,258.84x = 1,017,629,515,683.96 - Step 5: Solve for x
x = 1,017,629,515,683.96/1,118,258.84 - Step 6: Final answer
x = 910,012.50
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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.