Finding the Fourth Proportional to 1,455,586.20, 2,183,379.30 and 1,243,009.80
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Solution
The fourth proportional to 1,455,586.20, 2,183,379.30 and 1,243,009.80 is: 1,864,514.70
Step by Step Solution
- Step 1: Write the proportion equation
1,455,586.20 : 2,183,379.30 = 1,243,009.80 : x - Step 2: Convert to fraction form
1,455,586.20/2,183,379.30 = 1,243,009.80/x - Step 3: Cross multiply
1,455,586.20x = 2,183,379.30 × 1,243,009.80 - Step 4: Simplify right side
1,455,586.20x = 2,713,961,867,017.14 - Step 5: Solve for x
x = 2,713,961,867,017.14/1,455,586.20 - Step 6: Final answer
x = 1,864,514.70
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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.