Finding the Fourth Proportional to 764,817, 1,055,477.58 and 420,684.95
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Solution
The fourth proportional to 764,817, 1,055,477.58 and 420,684.95 is: 580,561.80
Step by Step Solution
- Step 1: Write the proportion equation
764,817 : 1,055,477.58 = 420,684.95 : x - Step 2: Convert to fraction form
764,817/1,055,477.58 = 420,684.95/x - Step 3: Cross multiply
764,817x = 1,055,477.58 × 420,684.95 - Step 4: Simplify right side
764,817x = 444,023,532,968.42 - Step 5: Solve for x
x = 444,023,532,968.42/764,817 - Step 6: Final answer
x = 580,561.80
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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.