Finding the Fourth Proportional to 1,163,135.40, 1,605,118.02 and 646,893.80
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Solution
The fourth proportional to 1,163,135.40, 1,605,118.02 and 646,893.80 is: 892,708.53
Step by Step Solution
- Step 1: Write the proportion equation
1,163,135.40 : 1,605,118.02 = 646,893.80 : x - Step 2: Convert to fraction form
1,163,135.40/1,605,118.02 = 646,893.80/x - Step 3: Cross multiply
1,163,135.40x = 1,605,118.02 × 646,893.80 - Step 4: Simplify right side
1,163,135.40x = 1,038,340,895,406.28 - Step 5: Solve for x
x = 1,038,340,895,406.28/1,163,135.40 - Step 6: Final answer
x = 892,708.53
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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.