Finding the Fourth Proportional to 718,539.68, 991,584.32 and 412,636.08
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Solution
The fourth proportional to 718,539.68, 991,584.32 and 412,636.08 is: 569,437.54
Step by Step Solution
- Step 1: Write the proportion equation
718,539.68 : 991,584.32 = 412,636.08 : x - Step 2: Convert to fraction form
718,539.68/991,584.32 = 412,636.08/x - Step 3: Cross multiply
718,539.68x = 991,584.32 × 412,636.08 - Step 4: Simplify right side
718,539.68x = 409,163,466,794.27 - Step 5: Solve for x
x = 409,163,466,794.27/718,539.68 - Step 6: Final answer
x = 569,437.54
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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.