Finding the Fourth Proportional to 1,300,347.36, 1,794,826.80 and 1,221,043.68
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Solution
The fourth proportional to 1,300,347.36, 1,794,826.80 and 1,221,043.68 is: 1,685,366.53
Step by Step Solution
- Step 1: Write the proportion equation
1,300,347.36 : 1,794,826.80 = 1,221,043.68 : x - Step 2: Convert to fraction form
1,300,347.36/1,794,826.80 = 1,221,043.68/x - Step 3: Cross multiply
1,300,347.36x = 1,794,826.80 × 1,221,043.68 - Step 4: Simplify right side
1,300,347.36x = 2,191,561,920,834.62 - Step 5: Solve for x
x = 2,191,561,920,834.62/1,300,347.36 - Step 6: Final answer
x = 1,685,366.53
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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.