Finding the Fourth Proportional to 1,381,415.31, 2,072,403.23 and 434,565.81
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Solution
The fourth proportional to 1,381,415.31, 2,072,403.23 and 434,565.81 is: 651,936.88
Step by Step Solution
- Step 1: Write the proportion equation
1,381,415.31 : 2,072,403.23 = 434,565.81 : x - Step 2: Convert to fraction form
1,381,415.31/2,072,403.23 = 434,565.81/x - Step 3: Cross multiply
1,381,415.31x = 2,072,403.23 × 434,565.81 - Step 4: Simplify right side
1,381,415.31x = 900,595,586,118.74 - Step 5: Solve for x
x = 900,595,586,118.74/1,381,415.31 - Step 6: Final answer
x = 651,936.88
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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.