Finding the Fourth Proportional to 1,203,971.99, 1,661,472.56 and 660,098.80
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Solution
The fourth proportional to 1,203,971.99, 1,661,472.56 and 660,098.80 is: 910,931.53
Step by Step Solution
- Step 1: Write the proportion equation
1,203,971.99 : 1,661,472.56 = 660,098.80 : x - Step 2: Convert to fraction form
1,203,971.99/1,661,472.56 = 660,098.80/x - Step 3: Cross multiply
1,203,971.99x = 1,661,472.56 × 660,098.80 - Step 4: Simplify right side
1,203,971.99x = 1,096,736,043,102.96 - Step 5: Solve for x
x = 1,096,736,043,102.96/1,203,971.99 - Step 6: Final answer
x = 910,931.53
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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.