Finding the Fourth Proportional to 819,807.96, 1,131,433.68 and 480,276.18
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Solution
The fourth proportional to 819,807.96, 1,131,433.68 and 480,276.18 is: 662,838.95
Step by Step Solution
- Step 1: Write the proportion equation
819,807.96 : 1,131,433.68 = 480,276.18 : x - Step 2: Convert to fraction form
819,807.96/1,131,433.68 = 480,276.18/x - Step 3: Cross multiply
819,807.96x = 1,131,433.68 × 480,276.18 - Step 4: Simplify right side
819,807.96x = 543,400,645,753.74 - Step 5: Solve for x
x = 543,400,645,753.74/819,807.96 - Step 6: Final answer
x = 662,838.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.