Finding the Fourth Proportional to 1,409,336.32, 2,113,615.68 and 398,378.56
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Solution
The fourth proportional to 1,409,336.32, 2,113,615.68 and 398,378.56 is: 597,457.94
Step by Step Solution
- Step 1: Write the proportion equation
1,409,336.32 : 2,113,615.68 = 398,378.56 : x - Step 2: Convert to fraction form
1,409,336.32/2,113,615.68 = 398,378.56/x - Step 3: Cross multiply
1,409,336.32x = 2,113,615.68 × 398,378.56 - Step 4: Simplify right side
1,409,336.32x = 842,019,170,991.82 - Step 5: Solve for x
x = 842,019,170,991.82/1,409,336.32 - Step 6: Final answer
x = 597,457.94
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.