Finding the Fourth Proportional to 1,861,103.20, 2,779,047.68 and 1,477,722.08
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Solution
The fourth proportional to 1,861,103.20, 2,779,047.68 and 1,477,722.08 is: 2,206,573.03
Step by Step Solution
- Step 1: Write the proportion equation
1,861,103.20 : 2,779,047.68 = 1,477,722.08 : x - Step 2: Convert to fraction form
1,861,103.20/2,779,047.68 = 1,477,722.08/x - Step 3: Cross multiply
1,861,103.20x = 2,779,047.68 × 1,477,722.08 - Step 4: Simplify right side
1,861,103.20x = 4,106,660,118,108.78 - Step 5: Solve for x
x = 4,106,660,118,108.78/1,861,103.20 - Step 6: Final answer
x = 2,206,573.03
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.