Finding the Fourth Proportional to 578,812.30, 868,316.08 and 199,631.60
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Solution
The fourth proportional to 578,812.30, 868,316.08 and 199,631.60 is: 299,481.07
Step by Step Solution
- Step 1: Write the proportion equation
578,812.30 : 868,316.08 = 199,631.60 : x - Step 2: Convert to fraction form
578,812.30/868,316.08 = 199,631.60/x - Step 3: Cross multiply
578,812.30x = 868,316.08 × 199,631.60 - Step 4: Simplify right side
578,812.30x = 173,343,328,356.13 - Step 5: Solve for x
x = 173,343,328,356.13/578,812.30 - Step 6: Final answer
x = 299,481.07
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.