Finding the Fourth Proportional to 1,618,420.56, 2,234,176.20 and 939,225.84
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Solution
The fourth proportional to 1,618,420.56, 2,234,176.20 and 939,225.84 is: 1,296,570.29
Step by Step Solution
- Step 1: Write the proportion equation
1,618,420.56 : 2,234,176.20 = 939,225.84 : x - Step 2: Convert to fraction form
1,618,420.56/2,234,176.20 = 939,225.84/x - Step 3: Cross multiply
1,618,420.56x = 2,234,176.20 × 939,225.84 - Step 4: Simplify right side
1,618,420.56x = 2,098,396,018,153.01 - Step 5: Solve for x
x = 2,098,396,018,153.01/1,618,420.56 - Step 6: Final answer
x = 1,296,570.29
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.