Finding the Fourth Proportional to 1,420,129.68, 1,959,768.99 and 775,550.04
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Solution
The fourth proportional to 1,420,129.68, 1,959,768.99 and 775,550.04 is: 1,070,253.61
Step by Step Solution
- Step 1: Write the proportion equation
1,420,129.68 : 1,959,768.99 = 775,550.04 : x - Step 2: Convert to fraction form
1,420,129.68/1,959,768.99 = 775,550.04/x - Step 3: Cross multiply
1,420,129.68x = 1,959,768.99 × 775,550.04 - Step 4: Simplify right side
1,420,129.68x = 1,519,898,918,585.26 - Step 5: Solve for x
x = 1,519,898,918,585.26/1,420,129.68 - Step 6: Final answer
x = 1,070,253.61
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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.