Finding the Fourth Proportional to 553,638.68, 764,021.36 and 298,989.84
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Solution
The fourth proportional to 553,638.68, 764,021.36 and 298,989.84 is: 412,605.97
Step by Step Solution
- Step 1: Write the proportion equation
553,638.68 : 764,021.36 = 298,989.84 : x - Step 2: Convert to fraction form
553,638.68/764,021.36 = 298,989.84/x - Step 3: Cross multiply
553,638.68x = 764,021.36 × 298,989.84 - Step 4: Simplify right side
553,638.68x = 228,434,624,182.98 - Step 5: Solve for x
x = 228,434,624,182.98/553,638.68 - Step 6: Final answer
x = 412,605.97
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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.