Finding the Fourth Proportional to 1,120,235.68, 1,545,863.84 and 636,733.76
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Solution
The fourth proportional to 1,120,235.68, 1,545,863.84 and 636,733.76 is: 878,657.69
Step by Step Solution
- Step 1: Write the proportion equation
1,120,235.68 : 1,545,863.84 = 636,733.76 : x - Step 2: Convert to fraction form
1,120,235.68/1,545,863.84 = 636,733.76/x - Step 3: Cross multiply
1,120,235.68x = 1,545,863.84 × 636,733.76 - Step 4: Simplify right side
1,120,235.68x = 984,303,695,291.24 - Step 5: Solve for x
x = 984,303,695,291.24/1,120,235.68 - Step 6: Final answer
x = 878,657.69
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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.