Finding the Fourth Proportional to 403,487.92, 556,904.53 and 306,959.21
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Solution
The fourth proportional to 403,487.92, 556,904.53 and 306,959.21 is: 423,673.09
Step by Step Solution
- Step 1: Write the proportion equation
403,487.92 : 556,904.53 = 306,959.21 : x - Step 2: Convert to fraction form
403,487.92/556,904.53 = 306,959.21/x - Step 3: Cross multiply
403,487.92x = 556,904.53 × 306,959.21 - Step 4: Simplify right side
403,487.92x = 170,946,974,574.22 - Step 5: Solve for x
x = 170,946,974,574.22/403,487.92 - Step 6: Final answer
x = 423,673.09
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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.