Finding the Fourth Proportional to 1,542,438.25, 2,128,563.43 and 854,110.07
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Solution
The fourth proportional to 1,542,438.25, 2,128,563.43 and 854,110.07 is: 1,178,671.15
Step by Step Solution
- Step 1: Write the proportion equation
1,542,438.25 : 2,128,563.43 = 854,110.07 : x - Step 2: Convert to fraction form
1,542,438.25/2,128,563.43 = 854,110.07/x - Step 3: Cross multiply
1,542,438.25x = 2,128,563.43 × 854,110.07 - Step 4: Simplify right side
1,542,438.25x = 1,818,027,455,400.76 - Step 5: Solve for x
x = 1,818,027,455,400.76/1,542,438.25 - Step 6: Final answer
x = 1,178,671.15
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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.