Finding the Fourth Proportional to 1,438,591.08, 2,157,886.02 and 427,708.66
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Solution
The fourth proportional to 1,438,591.08, 2,157,886.02 and 427,708.66 is: 641,562.81
Step by Step Solution
- Step 1: Write the proportion equation
1,438,591.08 : 2,157,886.02 = 427,708.66 : x - Step 2: Convert to fraction form
1,438,591.08/2,157,886.02 = 427,708.66/x - Step 3: Cross multiply
1,438,591.08x = 2,157,886.02 × 427,708.66 - Step 4: Simplify right side
1,438,591.08x = 922,946,538,046.93 - Step 5: Solve for x
x = 922,946,538,046.93/1,438,591.08 - Step 6: Final answer
x = 641,562.81
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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.