Finding the Fourth Proportional to 1,048,107.80, 1,572,161.70 and 479,487.80
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Solution
The fourth proportional to 1,048,107.80, 1,572,161.70 and 479,487.80 is: 719,231.70
Step by Step Solution
- Step 1: Write the proportion equation
1,048,107.80 : 1,572,161.70 = 479,487.80 : x - Step 2: Convert to fraction form
1,048,107.80/1,572,161.70 = 479,487.80/x - Step 3: Cross multiply
1,048,107.80x = 1,572,161.70 × 479,487.80 - Step 4: Simplify right side
1,048,107.80x = 753,832,354,777.26 - Step 5: Solve for x
x = 753,832,354,777.26/1,048,107.80 - Step 6: Final answer
x = 719,231.70
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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.