Finding the Fourth Proportional to 1,257,419.50, 1,734,303.15 and 798,135.12
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Solution
The fourth proportional to 1,257,419.50, 1,734,303.15 and 798,135.12 is: 1,100,832.50
Step by Step Solution
- Step 1: Write the proportion equation
1,257,419.50 : 1,734,303.15 = 798,135.12 : x - Step 2: Convert to fraction form
1,257,419.50/1,734,303.15 = 798,135.12/x - Step 3: Cross multiply
1,257,419.50x = 1,734,303.15 × 798,135.12 - Step 4: Simplify right side
1,257,419.50x = 1,384,208,252,741.63 - Step 5: Solve for x
x = 1,384,208,252,741.63/1,257,419.50 - Step 6: Final answer
x = 1,100,832.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.