Finding the Fourth Proportional to 1,427,778.74, 2,142,322.12 and 618,410.70
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Solution
The fourth proportional to 1,427,778.74, 2,142,322.12 and 618,410.70 is: 927,899.32
Step by Step Solution
- Step 1: Write the proportion equation
1,427,778.74 : 2,142,322.12 = 618,410.70 : x - Step 2: Convert to fraction form
1,427,778.74/2,142,322.12 = 618,410.70/x - Step 3: Cross multiply
1,427,778.74x = 2,142,322.12 × 618,410.70 - Step 4: Simplify right side
1,427,778.74x = 1,324,834,921,854.68 - Step 5: Solve for x
x = 1,324,834,921,854.68/1,427,778.74 - Step 6: Final answer
x = 927,899.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.