Finding the Fourth Proportional to 3,678,263.15, 5,518,188.86 and 1,119,678.17
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Solution
The fourth proportional to 3,678,263.15, 5,518,188.86 and 1,119,678.17 is: 1,679,758.99
Step by Step Solution
- Step 1: Write the proportion equation
3,678,263.15 : 5,518,188.86 = 1,119,678.17 : x - Step 2: Convert to fraction form
3,678,263.15/5,518,188.86 = 1,119,678.17/x - Step 3: Cross multiply
3,678,263.15x = 5,518,188.86 × 1,119,678.17 - Step 4: Simplify right side
3,678,263.15x = 6,178,595,571,289.85 - Step 5: Solve for x
x = 6,178,595,571,289.85/3,678,263.15 - Step 6: Final answer
x = 1,679,758.99
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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.