Finding the Fourth Proportional to 554,158.17, 764,722.98 and 312,438.63
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Solution
The fourth proportional to 554,158.17, 764,722.98 and 312,438.63 is: 431,156.69
Step by Step Solution
- Step 1: Write the proportion equation
554,158.17 : 764,722.98 = 312,438.63 : x - Step 2: Convert to fraction form
554,158.17/764,722.98 = 312,438.63/x - Step 3: Cross multiply
554,158.17x = 764,722.98 × 312,438.63 - Step 4: Simplify right side
554,158.17x = 238,929,000,200.72 - Step 5: Solve for x
x = 238,929,000,200.72/554,158.17 - Step 6: Final answer
x = 431,156.69
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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.