Finding the Fourth Proportional to 513,012.14, 707,955.26 and 286,657.82
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Solution
The fourth proportional to 513,012.14, 707,955.26 and 286,657.82 is: 395,586.96
Step by Step Solution
- Step 1: Write the proportion equation
513,012.14 : 707,955.26 = 286,657.82 : x - Step 2: Convert to fraction form
513,012.14/707,955.26 = 286,657.82/x - Step 3: Cross multiply
513,012.14x = 707,955.26 × 286,657.82 - Step 4: Simplify right side
513,012.14x = 202,940,911,489.13 - Step 5: Solve for x
x = 202,940,911,489.13/513,012.14 - Step 6: Final answer
x = 395,586.96
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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.