Finding the Fourth Proportional to 1,213,006.53, 1,673,432.67 and 890,155.65
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Solution
The fourth proportional to 1,213,006.53, 1,673,432.67 and 890,155.65 is: 1,228,035.88
Step by Step Solution
- Step 1: Write the proportion equation
1,213,006.53 : 1,673,432.67 = 890,155.65 : x - Step 2: Convert to fraction form
1,213,006.53/1,673,432.67 = 890,155.65/x - Step 3: Cross multiply
1,213,006.53x = 1,673,432.67 × 890,155.65 - Step 4: Simplify right side
1,213,006.53x = 1,489,615,546,095.09 - Step 5: Solve for x
x = 1,489,615,546,095.09/1,213,006.53 - Step 6: Final answer
x = 1,228,035.88
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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.