Finding the Fourth Proportional to 926,752.80, 1,390,129.20 and 727,687.20
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Solution
The fourth proportional to 926,752.80, 1,390,129.20 and 727,687.20 is: 1,091,530.80
Step by Step Solution
- Step 1: Write the proportion equation
926,752.80 : 1,390,129.20 = 727,687.20 : x - Step 2: Convert to fraction form
926,752.80/1,390,129.20 = 727,687.20/x - Step 3: Cross multiply
926,752.80x = 1,390,129.20 × 727,687.20 - Step 4: Simplify right side
926,752.80x = 1,011,579,225,186.24 - Step 5: Solve for x
x = 1,011,579,225,186.24/926,752.80 - Step 6: Final answer
x = 1,091,530.80
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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.