Finding the Fourth Proportional to 1,427,201.20, 1,969,628.70 and 942,916.78
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Solution
The fourth proportional to 1,427,201.20, 1,969,628.70 and 942,916.78 is: 1,301,285.31
Step by Step Solution
- Step 1: Write the proportion equation
1,427,201.20 : 1,969,628.70 = 942,916.78 : x - Step 2: Convert to fraction form
1,427,201.20/1,969,628.70 = 942,916.78/x - Step 3: Cross multiply
1,427,201.20x = 1,969,628.70 × 942,916.78 - Step 4: Simplify right side
1,427,201.20x = 1,857,195,951,599.59 - Step 5: Solve for x
x = 1,857,195,951,599.59/1,427,201.20 - Step 6: Final answer
x = 1,301,285.31
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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.