Finding the Fourth Proportional to 1,226,303.15, 1,690,850.84 and 839,305.31
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Solution
The fourth proportional to 1,226,303.15, 1,690,850.84 and 839,305.31 is: 1,157,250.62
Step by Step Solution
- Step 1: Write the proportion equation
1,226,303.15 : 1,690,850.84 = 839,305.31 : x - Step 2: Convert to fraction form
1,226,303.15/1,690,850.84 = 839,305.31/x - Step 3: Cross multiply
1,226,303.15x = 1,690,850.84 × 839,305.31 - Step 4: Simplify right side
1,226,303.15x = 1,419,140,075,779.18 - Step 5: Solve for x
x = 1,419,140,075,779.18/1,226,303.15 - Step 6: Final answer
x = 1,157,250.62
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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.