Finding the Fourth Proportional to 2,080,390.40, 3,118,252.80 and 1,069,121.60
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Solution
The fourth proportional to 2,080,390.40, 3,118,252.80 and 1,069,121.60 is: 1,602,483.56
Step by Step Solution
- Step 1: Write the proportion equation
2,080,390.40 : 3,118,252.80 = 1,069,121.60 : x - Step 2: Convert to fraction form
2,080,390.40/3,118,252.80 = 1,069,121.60/x - Step 3: Cross multiply
2,080,390.40x = 3,118,252.80 × 1,069,121.60 - Step 4: Simplify right side
2,080,390.40x = 3,333,791,422,740.48 - Step 5: Solve for x
x = 3,333,791,422,740.48/2,080,390.40 - Step 6: Final answer
x = 1,602,483.56
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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.