Finding the Fourth Proportional to 553,973.76, 764,313.84 and 338,889.60
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Solution
The fourth proportional to 553,973.76, 764,313.84 and 338,889.60 is: 467,563.68
Step by Step Solution
- Step 1: Write the proportion equation
553,973.76 : 764,313.84 = 338,889.60 : x - Step 2: Convert to fraction form
553,973.76/764,313.84 = 338,889.60/x - Step 3: Cross multiply
553,973.76x = 764,313.84 × 338,889.60 - Step 4: Simplify right side
553,973.76x = 259,018,011,512.06 - Step 5: Solve for x
x = 259,018,011,512.06/553,973.76 - Step 6: Final answer
x = 467,563.68
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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.