Finding the Fourth Proportional to 1,575,403.20, 2,363,104.80 and 438,163.20
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Solution
The fourth proportional to 1,575,403.20, 2,363,104.80 and 438,163.20 is: 657,244.80
Step by Step Solution
- Step 1: Write the proportion equation
1,575,403.20 : 2,363,104.80 = 438,163.20 : x - Step 2: Convert to fraction form
1,575,403.20/2,363,104.80 = 438,163.20/x - Step 3: Cross multiply
1,575,403.20x = 2,363,104.80 × 438,163.20 - Step 4: Simplify right side
1,575,403.20x = 1,035,425,561,103.36 - Step 5: Solve for x
x = 1,035,425,561,103.36/1,575,403.20 - Step 6: Final answer
x = 657,244.80
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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.