Finding the Fourth Proportional to 1,427,668.29, 1,970,237.39 and 783,115.65
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Solution
The fourth proportional to 1,427,668.29, 1,970,237.39 and 783,115.65 is: 1,080,729.85
Step by Step Solution
- Step 1: Write the proportion equation
1,427,668.29 : 1,970,237.39 = 783,115.65 : x - Step 2: Convert to fraction form
1,427,668.29/1,970,237.39 = 783,115.65/x - Step 3: Cross multiply
1,427,668.29x = 1,970,237.39 × 783,115.65 - Step 4: Simplify right side
1,427,668.29x = 1,542,923,730,408.58 - Step 5: Solve for x
x = 1,542,923,730,408.58/1,427,668.29 - Step 6: Final answer
x = 1,080,729.85
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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.