Finding the Fourth Proportional to 4,319,138.16, 6,478,041.42 and 1,440,555.30
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Solution
The fourth proportional to 4,319,138.16, 6,478,041.42 and 1,440,555.30 is: 2,160,610.88
Step by Step Solution
- Step 1: Write the proportion equation
4,319,138.16 : 6,478,041.42 = 1,440,555.30 : x - Step 2: Convert to fraction form
4,319,138.16/6,478,041.42 = 1,440,555.30/x - Step 3: Cross multiply
4,319,138.16x = 6,478,041.42 × 1,440,555.30 - Step 4: Simplify right side
4,319,138.16x = 9,331,976,901,200.53 - Step 5: Solve for x
x = 9,331,976,901,200.53/4,319,138.16 - Step 6: Final answer
x = 2,160,610.88
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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.