Finding the Fourth Proportional to 1,197,420.77, 1,795,177.08 and 691,407.75
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Solution
The fourth proportional to 1,197,420.77, 1,795,177.08 and 691,407.75 is: 1,036,560.72
Step by Step Solution
- Step 1: Write the proportion equation
1,197,420.77 : 1,795,177.08 = 691,407.75 : x - Step 2: Convert to fraction form
1,197,420.77/1,795,177.08 = 691,407.75/x - Step 3: Cross multiply
1,197,420.77x = 1,795,177.08 × 691,407.75 - Step 4: Simplify right side
1,197,420.77x = 1,241,199,342,368.41 - Step 5: Solve for x
x = 1,241,199,342,368.41/1,197,420.77 - Step 6: Final answer
x = 1,036,560.72
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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.