Finding the Fourth Proportional to 1,387,536.37, 2,080,357.39 and 739,209.49
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Solution
The fourth proportional to 1,387,536.37, 2,080,357.39 and 739,209.49 is: 1,108,309.63
Step by Step Solution
- Step 1: Write the proportion equation
1,387,536.37 : 2,080,357.39 = 739,209.49 : x - Step 2: Convert to fraction form
1,387,536.37/2,080,357.39 = 739,209.49/x - Step 3: Cross multiply
1,387,536.37x = 2,080,357.39 × 739,209.49 - Step 4: Simplify right side
1,387,536.37x = 1,537,819,921,002.75 - Step 5: Solve for x
x = 1,537,819,921,002.75/1,387,536.37 - Step 6: Final answer
x = 1,108,309.63
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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.