Finding the Fourth Proportional to 761,452.84, 1,050,811.14 and 421,926.76
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Solution
The fourth proportional to 761,452.84, 1,050,811.14 and 421,926.76 is: 582,262.38
Step by Step Solution
- Step 1: Write the proportion equation
761,452.84 : 1,050,811.14 = 421,926.76 : x - Step 2: Convert to fraction form
761,452.84/1,050,811.14 = 421,926.76/x - Step 3: Cross multiply
761,452.84x = 1,050,811.14 × 421,926.76 - Step 4: Simplify right side
761,452.84x = 443,365,339,672.11 - Step 5: Solve for x
x = 443,365,339,672.11/761,452.84 - Step 6: Final answer
x = 582,262.38
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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.