Finding the Fourth Proportional to 1,471,309.20, 2,206,963.80 and 761,554.80
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Solution
The fourth proportional to 1,471,309.20, 2,206,963.80 and 761,554.80 is: 1,142,332.20
Step by Step Solution
- Step 1: Write the proportion equation
1,471,309.20 : 2,206,963.80 = 761,554.80 : x - Step 2: Convert to fraction form
1,471,309.20/2,206,963.80 = 761,554.80/x - Step 3: Cross multiply
1,471,309.20x = 2,206,963.80 × 761,554.80 - Step 4: Simplify right side
1,471,309.20x = 1,680,723,875,316.24 - Step 5: Solve for x
x = 1,680,723,875,316.24/1,471,309.20 - Step 6: Final answer
x = 1,142,332.20
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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.