Finding the Fourth Proportional to 1,432,601.87, 1,977,271.26 and 821,164.05
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Solution
The fourth proportional to 1,432,601.87, 1,977,271.26 and 821,164.05 is: 1,133,367.28
Step by Step Solution
- Step 1: Write the proportion equation
1,432,601.87 : 1,977,271.26 = 821,164.05 : x - Step 2: Convert to fraction form
1,432,601.87/1,977,271.26 = 821,164.05/x - Step 3: Cross multiply
1,432,601.87x = 1,977,271.26 × 821,164.05 - Step 4: Simplify right side
1,432,601.87x = 1,623,664,078,291.91 - Step 5: Solve for x
x = 1,623,664,078,291.91/1,432,601.87 - Step 6: Final answer
x = 1,133,367.28
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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.