Finding the Fourth Proportional to 456,497.20, 684,745.80 and 432,002.80
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Solution
The fourth proportional to 456,497.20, 684,745.80 and 432,002.80 is: 648,004.20
Step by Step Solution
- Step 1: Write the proportion equation
456,497.20 : 684,745.80 = 432,002.80 : x - Step 2: Convert to fraction form
456,497.20/684,745.80 = 432,002.80/x - Step 3: Cross multiply
456,497.20x = 684,745.80 × 432,002.80 - Step 4: Simplify right side
456,497.20x = 295,812,102,888.24 - Step 5: Solve for x
x = 295,812,102,888.24/456,497.20 - Step 6: Final answer
x = 648,004.20
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1.5x scale
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.