Finding the Fourth Proportional to 1,198,481.74, 1,653,475.05 and 708,348.40
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Solution
The fourth proportional to 1,198,481.74, 1,653,475.05 and 708,348.40 is: 977,266.79
Step by Step Solution
- Step 1: Write the proportion equation
1,198,481.74 : 1,653,475.05 = 708,348.40 : x - Step 2: Convert to fraction form
1,198,481.74/1,653,475.05 = 708,348.40/x - Step 3: Cross multiply
1,198,481.74x = 1,653,475.05 × 708,348.40 - Step 4: Simplify right side
1,198,481.74x = 1,171,236,401,973.73 - Step 5: Solve for x
x = 1,171,236,401,973.73/1,198,481.74 - Step 6: Final answer
x = 977,266.79
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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.