Finding the Fourth Proportional to 1,119,434.18, 1,678,843.26 and 309,624.53
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Solution
The fourth proportional to 1,119,434.18, 1,678,843.26 and 309,624.53 is: 464,351.60
Step by Step Solution
- Step 1: Write the proportion equation
1,119,434.18 : 1,678,843.26 = 309,624.53 : x - Step 2: Convert to fraction form
1,119,434.18/1,678,843.26 = 309,624.53/x - Step 3: Cross multiply
1,119,434.18x = 1,678,843.26 × 309,624.53 - Step 4: Simplify right side
1,119,434.18x = 519,811,046,926.95 - Step 5: Solve for x
x = 519,811,046,926.95/1,119,434.18 - Step 6: Final answer
x = 464,351.60
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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.