Finding the Fourth Proportional to 1,275,756.18, 1,913,636.97 and 1,197,811.50
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Solution
The fourth proportional to 1,275,756.18, 1,913,636.97 and 1,197,811.50 is: 1,796,719.79
Step by Step Solution
- Step 1: Write the proportion equation
1,275,756.18 : 1,913,636.97 = 1,197,811.50 : x - Step 2: Convert to fraction form
1,275,756.18/1,913,636.97 = 1,197,811.50/x - Step 3: Cross multiply
1,275,756.18x = 1,913,636.97 × 1,197,811.50 - Step 4: Simplify right side
1,275,756.18x = 2,292,176,369,491.15 - Step 5: Solve for x
x = 2,292,176,369,491.15/1,275,756.18 - Step 6: Final answer
x = 1,796,719.79
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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.