Finding the Fourth Proportional to 630,099.53, 869,604.79 and 385,227.98
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Solution
The fourth proportional to 630,099.53, 869,604.79 and 385,227.98 is: 531,655.84
Step by Step Solution
- Step 1: Write the proportion equation
630,099.53 : 869,604.79 = 385,227.98 : x - Step 2: Convert to fraction form
630,099.53/869,604.79 = 385,227.98/x - Step 3: Cross multiply
630,099.53x = 869,604.79 × 385,227.98 - Step 4: Simplify right side
630,099.53x = 334,996,094,230.80 - Step 5: Solve for x
x = 334,996,094,230.80/630,099.53 - Step 6: Final answer
x = 531,655.84
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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.