Finding the Fourth Proportional to 1,438,367.14, 2,156,989.78 and 539,318.98
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Solution
The fourth proportional to 1,438,367.14, 2,156,989.78 and 539,318.98 is: 808,768.15
Step by Step Solution
- Step 1: Write the proportion equation
1,438,367.14 : 2,156,989.78 = 539,318.98 : x - Step 2: Convert to fraction form
1,438,367.14/2,156,989.78 = 539,318.98/x - Step 3: Cross multiply
1,438,367.14x = 2,156,989.78 × 539,318.98 - Step 4: Simplify right side
1,438,367.14x = 1,163,305,528,020.02 - Step 5: Solve for x
x = 1,163,305,528,020.02/1,438,367.14 - Step 6: Final answer
x = 808,768.15
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.