Finding the Fourth Proportional to 1,284,230.90, 1,772,234.19 and 740,364.09
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Solution
The fourth proportional to 1,284,230.90, 1,772,234.19 and 740,364.09 is: 1,021,699.88
Step by Step Solution
- Step 1: Write the proportion equation
1,284,230.90 : 1,772,234.19 = 740,364.09 : x - Step 2: Convert to fraction form
1,284,230.90/1,772,234.19 = 740,364.09/x - Step 3: Cross multiply
1,284,230.90x = 1,772,234.19 × 740,364.09 - Step 4: Simplify right side
1,284,230.90x = 1,312,098,553,346.24 - Step 5: Solve for x
x = 1,312,098,553,346.24/1,284,230.90 - Step 6: Final answer
x = 1,021,699.88
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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.