Finding the Fourth Proportional to 453,039.12, 679,554.36 and 120,615.12
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Solution
The fourth proportional to 453,039.12, 679,554.36 and 120,615.12 is: 180,921.53
Step by Step Solution
- Step 1: Write the proportion equation
453,039.12 : 679,554.36 = 120,615.12 : x - Step 2: Convert to fraction form
453,039.12/679,554.36 = 120,615.12/x - Step 3: Cross multiply
453,039.12x = 679,554.36 × 120,615.12 - Step 4: Simplify right side
453,039.12x = 81,964,530,677.92 - Step 5: Solve for x
x = 81,964,530,677.92/453,039.12 - Step 6: Final answer
x = 180,921.53
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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.