Finding the Fourth Proportional to 1,113,440.77, 1,668,011.82 and 664,520.14
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Solution
The fourth proportional to 1,113,440.77, 1,668,011.82 and 664,520.14 is: 995,497.45
Step by Step Solution
- Step 1: Write the proportion equation
1,113,440.77 : 1,668,011.82 = 664,520.14 : x - Step 2: Convert to fraction form
1,113,440.77/1,668,011.82 = 664,520.14/x - Step 3: Cross multiply
1,113,440.77x = 1,668,011.82 × 664,520.14 - Step 4: Simplify right side
1,113,440.77x = 1,108,427,448,148.06 - Step 5: Solve for x
x = 1,108,427,448,148.06/1,113,440.77 - Step 6: Final answer
x = 995,497.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.