Finding the Fourth Proportional to 1,209,788.49, 1,815,519.26 and 499,822.68
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Solution
The fourth proportional to 1,209,788.49, 1,815,519.26 and 499,822.68 is: 750,079.63
Step by Step Solution
- Step 1: Write the proportion equation
1,209,788.49 : 1,815,519.26 = 499,822.68 : x - Step 2: Convert to fraction form
1,209,788.49/1,815,519.26 = 499,822.68/x - Step 3: Cross multiply
1,209,788.49x = 1,815,519.26 × 499,822.68 - Step 4: Simplify right side
1,209,788.49x = 907,437,702,124.82 - Step 5: Solve for x
x = 907,437,702,124.82/1,209,788.49 - Step 6: Final answer
x = 750,079.63
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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.