Finding the Fourth Proportional to 2,166,277.08, 2,989,555.80 and 1,199,407.38
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Solution
The fourth proportional to 2,166,277.08, 2,989,555.80 and 1,199,407.38 is: 1,655,233.91
Step by Step Solution
- Step 1: Write the proportion equation
2,166,277.08 : 2,989,555.80 = 1,199,407.38 : x - Step 2: Convert to fraction form
2,166,277.08/2,989,555.80 = 1,199,407.38/x - Step 3: Cross multiply
2,166,277.08x = 2,989,555.80 × 1,199,407.38 - Step 4: Simplify right side
2,166,277.08x = 3,585,695,289,441.80 - Step 5: Solve for x
x = 3,585,695,289,441.80/2,166,277.08 - Step 6: Final answer
x = 1,655,233.91
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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.