Finding the Fourth Proportional to 1,241,783.09, 1,862,622.80 and 355,319.09
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Solution
The fourth proportional to 1,241,783.09, 1,862,622.80 and 355,319.09 is: 532,963.80
Step by Step Solution
- Step 1: Write the proportion equation
1,241,783.09 : 1,862,622.80 = 355,319.09 : x - Step 2: Convert to fraction form
1,241,783.09/1,862,622.80 = 355,319.09/x - Step 3: Cross multiply
1,241,783.09x = 1,862,622.80 × 355,319.09 - Step 4: Simplify right side
1,241,783.09x = 661,825,436,532.66 - Step 5: Solve for x
x = 661,825,436,532.66/1,241,783.09 - Step 6: Final answer
x = 532,963.80
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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.