Finding the Fourth Proportional to 1,163,431.98, 1,605,340.49 and 647,118.54
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Solution
The fourth proportional to 1,163,431.98, 1,605,340.49 and 647,118.54 is: 892,914.76
Step by Step Solution
- Step 1: Write the proportion equation
1,163,431.98 : 1,605,340.49 = 647,118.54 : x - Step 2: Convert to fraction form
1,163,431.98/1,605,340.49 = 647,118.54/x - Step 3: Cross multiply
1,163,431.98x = 1,605,340.49 × 647,118.54 - Step 4: Simplify right side
1,163,431.98x = 1,038,845,590,856.09 - Step 5: Solve for x
x = 1,038,845,590,856.09/1,163,431.98 - Step 6: Final answer
x = 892,914.76
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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.