Finding the Fourth Proportional to 1,625,455.36, 2,243,103.68 and 890,403.74
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Solution
The fourth proportional to 1,625,455.36, 2,243,103.68 and 890,403.74 is: 1,228,743.62
Step by Step Solution
- Step 1: Write the proportion equation
1,625,455.36 : 2,243,103.68 = 890,403.74 : x - Step 2: Convert to fraction form
1,625,455.36/2,243,103.68 = 890,403.74/x - Step 3: Cross multiply
1,625,455.36x = 2,243,103.68 × 890,403.74 - Step 4: Simplify right side
1,625,455.36x = 1,997,267,905,879.76 - Step 5: Solve for x
x = 1,997,267,905,879.76/1,625,455.36 - Step 6: Final answer
x = 1,228,743.62
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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.