Finding the Fourth Proportional to 814,249.80, 1,221,374.70 and 340,885.80
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Solution
The fourth proportional to 814,249.80, 1,221,374.70 and 340,885.80 is: 511,328.70
Step by Step Solution
- Step 1: Write the proportion equation
814,249.80 : 1,221,374.70 = 340,885.80 : x - Step 2: Convert to fraction form
814,249.80/1,221,374.70 = 340,885.80/x - Step 3: Cross multiply
814,249.80x = 1,221,374.70 × 340,885.80 - Step 4: Simplify right side
814,249.80x = 416,349,291,709.26 - Step 5: Solve for x
x = 416,349,291,709.26/814,249.80 - Step 6: Final answer
x = 511,328.70
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1.5x scale
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.