Finding the Fourth Proportional to 1,609,138.68, 2,220,364.78 and 929,944.12
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Solution
The fourth proportional to 1,609,138.68, 2,220,364.78 and 929,944.12 is: 1,283,180.37
Step by Step Solution
- Step 1: Write the proportion equation
1,609,138.68 : 2,220,364.78 = 929,944.12 : x - Step 2: Convert to fraction form
1,609,138.68/2,220,364.78 = 929,944.12/x - Step 3: Cross multiply
1,609,138.68x = 2,220,364.78 × 929,944.12 - Step 4: Simplify right side
1,609,138.68x = 2,064,815,171,416.09 - Step 5: Solve for x
x = 2,064,815,171,416.09/1,609,138.68 - Step 6: Final answer
x = 1,283,180.37
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1.5x scale
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.