Finding the Fourth Proportional to 1,117,840.99, 1,542,821.75 and 658,928.31
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Solution
The fourth proportional to 1,117,840.99, 1,542,821.75 and 658,928.31 is: 909,439.66
Step by Step Solution
- Step 1: Write the proportion equation
1,117,840.99 : 1,542,821.75 = 658,928.31 : x - Step 2: Convert to fraction form
1,117,840.99/1,542,821.75 = 658,928.31/x - Step 3: Cross multiply
1,117,840.99x = 1,542,821.75 × 658,928.31 - Step 4: Simplify right side
1,117,840.99x = 1,016,608,928,358.74 - Step 5: Solve for x
x = 1,016,608,928,358.74/1,117,840.99 - Step 6: Final answer
x = 909,439.66
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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.