Finding the Fourth Proportional to 4,142,373.21, 5,716,315.60 and 2,306,908.87
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Solution
The fourth proportional to 4,142,373.21, 5,716,315.60 and 2,306,908.87 is: 3,183,445.45
Step by Step Solution
- Step 1: Write the proportion equation
4,142,373.21 : 5,716,315.60 = 2,306,908.87 : x - Step 2: Convert to fraction form
4,142,373.21/5,716,315.60 = 2,306,908.87/x - Step 3: Cross multiply
4,142,373.21x = 5,716,315.60 × 2,306,908.87 - Step 4: Simplify right side
4,142,373.21x = 13,187,019,141,301.31 - Step 5: Solve for x
x = 13,187,019,141,301.31/4,142,373.21 - Step 6: Final answer
x = 3,183,445.45
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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.