Finding the Fourth Proportional to 1,348,516.08, 1,861,395.68 and 1,073,378.63
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Solution
The fourth proportional to 1,348,516.08, 1,861,395.68 and 1,073,378.63 is: 1,481,615.50
Step by Step Solution
- Step 1: Write the proportion equation
1,348,516.08 : 1,861,395.68 = 1,073,378.63 : x - Step 2: Convert to fraction form
1,348,516.08/1,861,395.68 = 1,073,378.63/x - Step 3: Cross multiply
1,348,516.08x = 1,861,395.68 × 1,073,378.63 - Step 4: Simplify right side
1,348,516.08x = 1,997,982,338,262.79 - Step 5: Solve for x
x = 1,997,982,338,262.79/1,348,516.08 - Step 6: Final answer
x = 1,481,615.50
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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.