Finding the Fourth Proportional to 1,259,909.70, 1,889,864.55 and 1,102,445.70
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Solution
The fourth proportional to 1,259,909.70, 1,889,864.55 and 1,102,445.70 is: 1,653,668.55
Step by Step Solution
- Step 1: Write the proportion equation
1,259,909.70 : 1,889,864.55 = 1,102,445.70 : x - Step 2: Convert to fraction form
1,259,909.70/1,889,864.55 = 1,102,445.70/x - Step 3: Cross multiply
1,259,909.70x = 1,889,864.55 × 1,102,445.70 - Step 4: Simplify right side
1,259,909.70x = 2,083,473,046,729.94 - Step 5: Solve for x
x = 2,083,473,046,729.94/1,259,909.70 - Step 6: Final answer
x = 1,653,668.55
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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.