Finding the Fourth Proportional to 1,346,645.70, 2,019,968.55 and 638,057.70
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Solution
The fourth proportional to 1,346,645.70, 2,019,968.55 and 638,057.70 is: 957,086.55
Step by Step Solution
- Step 1: Write the proportion equation
1,346,645.70 : 2,019,968.55 = 638,057.70 : x - Step 2: Convert to fraction form
1,346,645.70/2,019,968.55 = 638,057.70/x - Step 3: Cross multiply
1,346,645.70x = 2,019,968.55 × 638,057.70 - Step 4: Simplify right side
1,346,645.70x = 1,288,856,487,085.34 - Step 5: Solve for x
x = 1,288,856,487,085.34/1,346,645.70 - Step 6: Final answer
x = 957,086.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.