Finding the Fourth Proportional to 1,079,173.48, 1,489,439.50 and 1,031,342.44
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Solution
The fourth proportional to 1,079,173.48, 1,489,439.50 and 1,031,342.44 is: 1,423,424.68
Step by Step Solution
- Step 1: Write the proportion equation
1,079,173.48 : 1,489,439.50 = 1,031,342.44 : x - Step 2: Convert to fraction form
1,079,173.48/1,489,439.50 = 1,031,342.44/x - Step 3: Cross multiply
1,079,173.48x = 1,489,439.50 × 1,031,342.44 - Step 4: Simplify right side
1,079,173.48x = 1,536,122,168,162.38 - Step 5: Solve for x
x = 1,536,122,168,162.38/1,079,173.48 - Step 6: Final answer
x = 1,423,424.68
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.