Finding the Fourth Proportional to 512,468.64, 707,212.01 and 283,031.65
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Solution
The fourth proportional to 512,468.64, 707,212.01 and 283,031.65 is: 390,586.59
Step by Step Solution
- Step 1: Write the proportion equation
512,468.64 : 707,212.01 = 283,031.65 : x - Step 2: Convert to fraction form
512,468.64/707,212.01 = 283,031.65/x - Step 3: Cross multiply
512,468.64x = 707,212.01 × 283,031.65 - Step 4: Simplify right side
512,468.64x = 200,163,378,554.06 - Step 5: Solve for x
x = 200,163,378,554.06/512,468.64 - Step 6: Final answer
x = 390,586.59
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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.