Finding the Fourth Proportional to 1,324,962.88, 1,987,165.68 and 426,484.96
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Solution
The fourth proportional to 1,324,962.88, 1,987,165.68 and 426,484.96 is: 639,637.75
Step by Step Solution
- Step 1: Write the proportion equation
1,324,962.88 : 1,987,165.68 = 426,484.96 : x - Step 2: Convert to fraction form
1,324,962.88/1,987,165.68 = 426,484.96/x - Step 3: Cross multiply
1,324,962.88x = 1,987,165.68 × 426,484.96 - Step 4: Simplify right side
1,324,962.88x = 847,496,275,548.17 - Step 5: Solve for x
x = 847,496,275,548.17/1,324,962.88 - Step 6: Final answer
x = 639,637.75
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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.