Finding the Fourth Proportional to 889,802.20, 1,335,140.70 and 416,405.80
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Solution
The fourth proportional to 889,802.20, 1,335,140.70 and 416,405.80 is: 624,813.39
Step by Step Solution
- Step 1: Write the proportion equation
889,802.20 : 1,335,140.70 = 416,405.80 : x - Step 2: Convert to fraction form
889,802.20/1,335,140.70 = 416,405.80/x - Step 3: Cross multiply
889,802.20x = 1,335,140.70 × 416,405.80 - Step 4: Simplify right side
889,802.20x = 555,960,331,296.06 - Step 5: Solve for x
x = 555,960,331,296.06/889,802.20 - Step 6: Final answer
x = 624,813.39
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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.