Finding the Fourth Proportional to 2,986,813.68, 4,121,795.28 and 1,628,686.68
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Solution
The fourth proportional to 2,986,813.68, 4,121,795.28 and 1,628,686.68 is: 2,247,583.48
Step by Step Solution
- Step 1: Write the proportion equation
2,986,813.68 : 4,121,795.28 = 1,628,686.68 : x - Step 2: Convert to fraction form
2,986,813.68/4,121,795.28 = 1,628,686.68/x - Step 3: Cross multiply
2,986,813.68x = 4,121,795.28 × 1,628,686.68 - Step 4: Simplify right side
2,986,813.68x = 6,713,113,070,222.87 - Step 5: Solve for x
x = 6,713,113,070,222.87/2,986,813.68 - Step 6: Final answer
x = 2,247,583.48
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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.