Finding the Fourth Proportional to 479,711.13, 718,779.36 and 163,995.81
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Solution
The fourth proportional to 479,711.13, 718,779.36 and 163,995.81 is: 245,724.55
Step by Step Solution
- Step 1: Write the proportion equation
479,711.13 : 718,779.36 = 163,995.81 : x - Step 2: Convert to fraction form
479,711.13/718,779.36 = 163,995.81/x - Step 3: Cross multiply
479,711.13x = 718,779.36 × 163,995.81 - Step 4: Simplify right side
479,711.13x = 117,876,803,354.48 - Step 5: Solve for x
x = 117,876,803,354.48/479,711.13 - Step 6: Final answer
x = 245,724.55
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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.