Finding the Fourth Proportional to 3,107,409.64, 4,288,159.32 and 1,730,749.12
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Solution
The fourth proportional to 3,107,409.64, 4,288,159.32 and 1,730,749.12 is: 2,388,397.03
Step by Step Solution
- Step 1: Write the proportion equation
3,107,409.64 : 4,288,159.32 = 1,730,749.12 : x - Step 2: Convert to fraction form
3,107,409.64/4,288,159.32 = 1,730,749.12/x - Step 3: Cross multiply
3,107,409.64x = 4,288,159.32 × 1,730,749.12 - Step 4: Simplify right side
3,107,409.64x = 7,421,727,969,509.80 - Step 5: Solve for x
x = 7,421,727,969,509.80/3,107,409.64 - Step 6: Final answer
x = 2,388,397.03
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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.