Finding the Fourth Proportional to 1,542,050.80, 2,128,996.08 and 990,989.98
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Solution
The fourth proportional to 1,542,050.80, 2,128,996.08 and 990,989.98 is: 1,368,186.95
Step by Step Solution
- Step 1: Write the proportion equation
1,542,050.80 : 2,128,996.08 = 990,989.98 : x - Step 2: Convert to fraction form
1,542,050.80/2,128,996.08 = 990,989.98/x - Step 3: Cross multiply
1,542,050.80x = 2,128,996.08 × 990,989.98 - Step 4: Simplify right side
1,542,050.80x = 2,109,813,782,739.28 - Step 5: Solve for x
x = 2,109,813,782,739.28/1,542,050.80 - Step 6: Final answer
x = 1,368,186.95
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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.