Finding the Fourth Proportional to 968,213.92, 1,336,032.84 and 538,424.56
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Solution
The fourth proportional to 968,213.92, 1,336,032.84 and 538,424.56 is: 742,968.96
Step by Step Solution
- Step 1: Write the proportion equation
968,213.92 : 1,336,032.84 = 538,424.56 : x - Step 2: Convert to fraction form
968,213.92/1,336,032.84 = 538,424.56/x - Step 3: Cross multiply
968,213.92x = 1,336,032.84 × 538,424.56 - Step 4: Simplify right side
968,213.92x = 719,352,894,022.55 - Step 5: Solve for x
x = 719,352,894,022.55/968,213.92 - Step 6: Final answer
x = 742,968.96
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1.5x scale
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.