Finding the Fourth Proportional to 513,029.64, 707,979.78 and 286,675.14
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Solution
The fourth proportional to 513,029.64, 707,979.78 and 286,675.14 is: 395,611.07
Step by Step Solution
- Step 1: Write the proportion equation
513,029.64 : 707,979.78 = 286,675.14 : x - Step 2: Convert to fraction form
513,029.64/707,979.78 = 286,675.14/x - Step 3: Cross multiply
513,029.64x = 707,979.78 × 286,675.14 - Step 4: Simplify right side
513,029.64x = 202,960,202,548.67 - Step 5: Solve for x
x = 202,960,202,548.67/513,029.64 - Step 6: Final answer
x = 395,611.07
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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.