Finding the Fourth Proportional to 1,542,317.28, 2,128,408.56 and 898,113.12
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Solution
The fourth proportional to 1,542,317.28, 2,128,408.56 and 898,113.12 is: 1,239,402.34
Step by Step Solution
- Step 1: Write the proportion equation
1,542,317.28 : 2,128,408.56 = 898,113.12 : x - Step 2: Convert to fraction form
1,542,317.28/2,128,408.56 = 898,113.12/x - Step 3: Cross multiply
1,542,317.28x = 2,128,408.56 × 898,113.12 - Step 4: Simplify right side
1,542,317.28x = 1,911,551,652,456.31 - Step 5: Solve for x
x = 1,911,551,652,456.31/1,542,317.28 - Step 6: Final answer
x = 1,239,402.34
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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.