Finding the Fourth Proportional to 3,678,228.81, 5,518,137.36 and 1,119,643.83
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Solution
The fourth proportional to 3,678,228.81, 5,518,137.36 and 1,119,643.83 is: 1,679,707.48
Step by Step Solution
- Step 1: Write the proportion equation
3,678,228.81 : 5,518,137.36 = 1,119,643.83 : x - Step 2: Convert to fraction form
3,678,228.81/5,518,137.36 = 1,119,643.83/x - Step 3: Cross multiply
3,678,228.81x = 5,518,137.36 × 1,119,643.83 - Step 4: Simplify right side
3,678,228.81x = 6,178,348,448,216.49 - Step 5: Solve for x
x = 6,178,348,448,216.49/3,678,228.81 - Step 6: Final answer
x = 1,679,707.48
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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.