Finding the Fourth Proportional to 2,311,881.28, 3,190,267.84 and 1,293,089.28
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Solution
The fourth proportional to 2,311,881.28, 3,190,267.84 and 1,293,089.28 is: 1,784,391.43
Step by Step Solution
- Step 1: Write the proportion equation
2,311,881.28 : 3,190,267.84 = 1,293,089.28 : x - Step 2: Convert to fraction form
2,311,881.28/3,190,267.84 = 1,293,089.28/x - Step 3: Cross multiply
2,311,881.28x = 3,190,267.84 × 1,293,089.28 - Step 4: Simplify right side
2,311,881.28x = 4,125,301,144,232.76 - Step 5: Solve for x
x = 4,125,301,144,232.76/2,311,881.28 - Step 6: Final answer
x = 1,784,391.43
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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.