Finding the Fourth Proportional to 1,381,293.28, 2,072,260.45 and 434,639.40
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Solution
The fourth proportional to 1,381,293.28, 2,072,260.45 and 434,639.40 is: 652,059.95
Step by Step Solution
- Step 1: Write the proportion equation
1,381,293.28 : 2,072,260.45 = 434,639.40 : x - Step 2: Convert to fraction form
1,381,293.28/2,072,260.45 = 434,639.40/x - Step 3: Cross multiply
1,381,293.28x = 2,072,260.45 × 434,639.40 - Step 4: Simplify right side
1,381,293.28x = 900,686,031,404.05 - Step 5: Solve for x
x = 900,686,031,404.05/1,381,293.28 - Step 6: Final answer
x = 652,059.95
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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.