Finding the Fourth Proportional to 521,663.84, 719,899.08 and 306,812.96
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Solution
The fourth proportional to 521,663.84, 719,899.08 and 306,812.96 is: 423,403.64
Step by Step Solution
- Step 1: Write the proportion equation
521,663.84 : 719,899.08 = 306,812.96 : x - Step 2: Convert to fraction form
521,663.84/719,899.08 = 306,812.96/x - Step 3: Cross multiply
521,663.84x = 719,899.08 × 306,812.96 - Step 4: Simplify right side
521,663.84x = 220,874,367,636.08 - Step 5: Solve for x
x = 220,874,367,636.08/521,663.84 - Step 6: Final answer
x = 423,403.64
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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.