Finding the Fourth Proportional to 553,806.99, 764,254.34 and 299,158.18
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Solution
The fourth proportional to 553,806.99, 764,254.34 and 299,158.18 is: 412,838.66
Step by Step Solution
- Step 1: Write the proportion equation
553,806.99 : 764,254.34 = 299,158.18 : x - Step 2: Convert to fraction form
553,806.99/764,254.34 = 299,158.18/x - Step 3: Cross multiply
553,806.99x = 764,254.34 × 299,158.18 - Step 4: Simplify right side
553,806.99x = 228,632,935,915.71 - Step 5: Solve for x
x = 228,632,935,915.71/553,806.99 - Step 6: Final answer
x = 412,838.66
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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.