Finding the Fourth Proportional to 1,381,415.05, 2,072,402.84 and 434,565.55
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Solution
The fourth proportional to 1,381,415.05, 2,072,402.84 and 434,565.55 is: 651,936.49
Step by Step Solution
- Step 1: Write the proportion equation
1,381,415.05 : 2,072,402.84 = 434,565.55 : x - Step 2: Convert to fraction form
1,381,415.05/2,072,402.84 = 434,565.55/x - Step 3: Cross multiply
1,381,415.05x = 2,072,402.84 × 434,565.55 - Step 4: Simplify right side
1,381,415.05x = 900,594,879,986.16 - Step 5: Solve for x
x = 900,594,879,986.16/1,381,415.05 - Step 6: Final answer
x = 651,936.49
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.