Finding the Fourth Proportional to 4,280,548.74, 6,421,811.32 and 1,440,591.54
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Solution
The fourth proportional to 4,280,548.74, 6,421,811.32 and 1,440,591.54 is: 2,161,219.89
Step by Step Solution
- Step 1: Write the proportion equation
4,280,548.74 : 6,421,811.32 = 1,440,591.54 : x - Step 2: Convert to fraction form
4,280,548.74/6,421,811.32 = 1,440,591.54/x - Step 3: Cross multiply
4,280,548.74x = 6,421,811.32 × 1,440,591.54 - Step 4: Simplify right side
4,280,548.74x = 9,251,207,059,068.24 - Step 5: Solve for x
x = 9,251,207,059,068.24/4,280,548.74 - Step 6: Final answer
x = 2,161,219.89
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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.