Finding the Fourth Proportional to 2,379,272.85, 3,283,400.73 and 1,291,545.18
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Solution
The fourth proportional to 2,379,272.85, 3,283,400.73 and 1,291,545.18 is: 1,782,334.63
Step by Step Solution
- Step 1: Write the proportion equation
2,379,272.85 : 3,283,400.73 = 1,291,545.18 : x - Step 2: Convert to fraction form
2,379,272.85/3,283,400.73 = 1,291,545.18/x - Step 3: Cross multiply
2,379,272.85x = 3,283,400.73 × 1,291,545.18 - Step 4: Simplify right side
2,379,272.85x = 4,240,660,386,839.98 - Step 5: Solve for x
x = 4,240,660,386,839.98/2,379,272.85 - Step 6: Final answer
x = 1,782,334.63
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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.