Finding the Fourth Proportional to 1,421,102.40, 2,130,616.80 and 579,220.80
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Solution
The fourth proportional to 1,421,102.40, 2,130,616.80 and 579,220.80 is: 868,408.62
Step by Step Solution
- Step 1: Write the proportion equation
1,421,102.40 : 2,130,616.80 = 579,220.80 : x - Step 2: Convert to fraction form
1,421,102.40/2,130,616.80 = 579,220.80/x - Step 3: Cross multiply
1,421,102.40x = 2,130,616.80 × 579,220.80 - Step 4: Simplify right side
1,421,102.40x = 1,234,097,567,389.44 - Step 5: Solve for x
x = 1,234,097,567,389.44/1,421,102.40 - Step 6: Final answer
x = 868,408.62
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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.