Finding the Fourth Proportional to 989,438.94, 1,365,426.21 and 559,709.94
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Solution
The fourth proportional to 989,438.94, 1,365,426.21 and 559,709.94 is: 772,399.98
Step by Step Solution
- Step 1: Write the proportion equation
989,438.94 : 1,365,426.21 = 559,709.94 : x - Step 2: Convert to fraction form
989,438.94/1,365,426.21 = 559,709.94/x - Step 3: Cross multiply
989,438.94x = 1,365,426.21 × 559,709.94 - Step 4: Simplify right side
989,438.94x = 764,242,622,073.53 - Step 5: Solve for x
x = 764,242,622,073.53/989,438.94 - Step 6: Final answer
x = 772,399.98
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.