Finding the Fourth Proportional to 1,479,397.80, 2,219,169.60 and 770,809.80
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Solution
The fourth proportional to 1,479,397.80, 2,219,169.60 and 770,809.80 is: 1,156,252.68
Step by Step Solution
- Step 1: Write the proportion equation
1,479,397.80 : 2,219,169.60 = 770,809.80 : x - Step 2: Convert to fraction form
1,479,397.80/2,219,169.60 = 770,809.80/x - Step 3: Cross multiply
1,479,397.80x = 2,219,169.60 × 770,809.80 - Step 4: Simplify right side
1,479,397.80x = 1,710,557,675,542.08 - Step 5: Solve for x
x = 1,710,557,675,542.08/1,479,397.80 - Step 6: Final answer
x = 1,156,252.68
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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.