Finding the Fourth Proportional to 1,163,728.63, 1,605,756.25 and 647,469.26
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Solution
The fourth proportional to 1,163,728.63, 1,605,756.25 and 647,469.26 is: 893,402.27
Step by Step Solution
- Step 1: Write the proportion equation
1,163,728.63 : 1,605,756.25 = 647,469.26 : x - Step 2: Convert to fraction form
1,163,728.63/1,605,756.25 = 647,469.26/x - Step 3: Cross multiply
1,163,728.63x = 1,605,756.25 × 647,469.26 - Step 4: Simplify right side
1,163,728.63x = 1,039,677,799,661.75 - Step 5: Solve for x
x = 1,039,677,799,661.75/1,163,728.63 - Step 6: Final answer
x = 893,402.27
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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.