Finding the Fourth Proportional to 1,297,815.36, 1,790,966.40 and 724,863.84
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Solution
The fourth proportional to 1,297,815.36, 1,790,966.40 and 724,863.84 is: 1,000,301.60
Step by Step Solution
- Step 1: Write the proportion equation
1,297,815.36 : 1,790,966.40 = 724,863.84 : x - Step 2: Convert to fraction form
1,297,815.36/1,790,966.40 = 724,863.84/x - Step 3: Cross multiply
1,297,815.36x = 1,790,966.40 × 724,863.84 - Step 4: Simplify right side
1,297,815.36x = 1,298,206,782,014.98 - Step 5: Solve for x
x = 1,298,206,782,014.98/1,297,815.36 - Step 6: Final answer
x = 1,000,301.60
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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.