Finding the Fourth Proportional to 2,127,542.76, 2,935,941.66 and 1,209,871.62
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Solution
The fourth proportional to 2,127,542.76, 2,935,941.66 and 1,209,871.62 is: 1,669,584.54
Step by Step Solution
- Step 1: Write the proportion equation
2,127,542.76 : 2,935,941.66 = 1,209,871.62 : x - Step 2: Convert to fraction form
2,127,542.76/2,935,941.66 = 1,209,871.62/x - Step 3: Cross multiply
2,127,542.76x = 2,935,941.66 × 1,209,871.62 - Step 4: Simplify right side
2,127,542.76x = 3,552,112,492,409.69 - Step 5: Solve for x
x = 3,552,112,492,409.69/2,127,542.76 - Step 6: Final answer
x = 1,669,584.54
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1.5x scale
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.