Finding the Fourth Proportional to 1,638,277.27, 2,455,640.79 and 838,462.21
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Solution
The fourth proportional to 1,638,277.27, 2,455,640.79 and 838,462.21 is: 1,256,784.82
Step by Step Solution
- Step 1: Write the proportion equation
1,638,277.27 : 2,455,640.79 = 838,462.21 : x - Step 2: Convert to fraction form
1,638,277.27/2,455,640.79 = 838,462.21/x - Step 3: Cross multiply
1,638,277.27x = 2,455,640.79 × 838,462.21 - Step 4: Simplify right side
1,638,277.27x = 2,058,961,994,466.21 - Step 5: Solve for x
x = 2,058,961,994,466.21/1,638,277.27 - Step 6: Final answer
x = 1,256,784.82
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.