Finding the Fourth Proportional to 1,242,779.81, 1,715,103.97 and 698,947.73
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Solution
The fourth proportional to 1,242,779.81, 1,715,103.97 and 698,947.73 is: 964,586.02
Step by Step Solution
- Step 1: Write the proportion equation
1,242,779.81 : 1,715,103.97 = 698,947.73 : x - Step 2: Convert to fraction form
1,242,779.81/1,715,103.97 = 698,947.73/x - Step 3: Cross multiply
1,242,779.81x = 1,715,103.97 × 698,947.73 - Step 4: Simplify right side
1,242,779.81x = 1,198,768,036,233.28 - Step 5: Solve for x
x = 1,198,768,036,233.28/1,242,779.81 - Step 6: Final answer
x = 964,586.02
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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.