Finding the Fourth Proportional to 1,275,933.80, 1,913,900.70 and 1,246,409.30
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Solution
The fourth proportional to 1,275,933.80, 1,913,900.70 and 1,246,409.30 is: 1,869,613.95
Step by Step Solution
- Step 1: Write the proportion equation
1,275,933.80 : 1,913,900.70 = 1,246,409.30 : x - Step 2: Convert to fraction form
1,275,933.80/1,913,900.70 = 1,246,409.30/x - Step 3: Cross multiply
1,275,933.80x = 1,913,900.70 × 1,246,409.30 - Step 4: Simplify right side
1,275,933.80x = 2,385,503,631,756.51 - Step 5: Solve for x
x = 2,385,503,631,756.51/1,275,933.80 - Step 6: Final answer
x = 1,869,613.95
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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.