Finding the Fourth Proportional to 456,083.40, 684,125.10 and 288,121.80
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Solution
The fourth proportional to 456,083.40, 684,125.10 and 288,121.80 is: 432,182.70
Step by Step Solution
- Step 1: Write the proportion equation
456,083.40 : 684,125.10 = 288,121.80 : x - Step 2: Convert to fraction form
456,083.40/684,125.10 = 288,121.80/x - Step 3: Cross multiply
456,083.40x = 684,125.10 × 288,121.80 - Step 4: Simplify right side
456,083.40x = 197,111,355,237.18 - Step 5: Solve for x
x = 197,111,355,237.18/456,083.40 - Step 6: Final answer
x = 432,182.70
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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.