Finding the Fourth Proportional to 1,028,215.18, 1,542,638.05 and 460,074.49
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Solution
The fourth proportional to 1,028,215.18, 1,542,638.05 and 460,074.49 is: 690,252.81
Step by Step Solution
- Step 1: Write the proportion equation
1,028,215.18 : 1,542,638.05 = 460,074.49 : x - Step 2: Convert to fraction form
1,028,215.18/1,542,638.05 = 460,074.49/x - Step 3: Cross multiply
1,028,215.18x = 1,542,638.05 × 460,074.49 - Step 4: Simplify right side
1,028,215.18x = 709,728,414,108.35 - Step 5: Solve for x
x = 709,728,414,108.35/1,028,215.18 - Step 6: Final answer
x = 690,252.81
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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.