Finding the Fourth Proportional to 818,406.24, 1,129,431.12 and 450,898.32
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Solution
The fourth proportional to 818,406.24, 1,129,431.12 and 450,898.32 is: 622,256.49
Step by Step Solution
- Step 1: Write the proportion equation
818,406.24 : 1,129,431.12 = 450,898.32 : x - Step 2: Convert to fraction form
818,406.24/1,129,431.12 = 450,898.32/x - Step 3: Cross multiply
818,406.24x = 1,129,431.12 × 450,898.32 - Step 4: Simplify right side
818,406.24x = 509,258,594,563.72 - Step 5: Solve for x
x = 509,258,594,563.72/818,406.24 - Step 6: Final answer
x = 622,256.49
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1.5x scale
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.