Finding the Fourth Proportional to 1,615,496.40, 2,425,212.90 and 816,366.60
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Solution
The fourth proportional to 1,615,496.40, 2,425,212.90 and 816,366.60 is: 1,225,544.55
Step by Step Solution
- Step 1: Write the proportion equation
1,615,496.40 : 2,425,212.90 = 816,366.60 : x - Step 2: Convert to fraction form
1,615,496.40/2,425,212.90 = 816,366.60/x - Step 3: Cross multiply
1,615,496.40x = 2,425,212.90 × 816,366.60 - Step 4: Simplify right side
1,615,496.40x = 1,979,862,809,449.14 - Step 5: Solve for x
x = 1,979,862,809,449.14/1,615,496.40 - Step 6: Final answer
x = 1,225,544.55
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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.