Finding the Fourth Proportional to 1,384,812.95, 1,911,037.11 and 772,960.40
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Solution
The fourth proportional to 1,384,812.95, 1,911,037.11 and 772,960.40 is: 1,066,682.69
Step by Step Solution
- Step 1: Write the proportion equation
1,384,812.95 : 1,911,037.11 = 772,960.40 : x - Step 2: Convert to fraction form
1,384,812.95/1,911,037.11 = 772,960.40/x - Step 3: Cross multiply
1,384,812.95x = 1,911,037.11 × 772,960.40 - Step 4: Simplify right side
1,384,812.95x = 1,477,155,999,405.26 - Step 5: Solve for x
x = 1,477,155,999,405.26/1,384,812.95 - Step 6: Final answer
x = 1,066,682.69
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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.