Finding the Fourth Proportional to 1,605,372.44, 2,215,513.50 and 889,980.44
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Solution
The fourth proportional to 1,605,372.44, 2,215,513.50 and 889,980.44 is: 1,228,228.19
Step by Step Solution
- Step 1: Write the proportion equation
1,605,372.44 : 2,215,513.50 = 889,980.44 : x - Step 2: Convert to fraction form
1,605,372.44/2,215,513.50 = 889,980.44/x - Step 3: Cross multiply
1,605,372.44x = 2,215,513.50 × 889,980.44 - Step 4: Simplify right side
1,605,372.44x = 1,971,763,679,555.94 - Step 5: Solve for x
x = 1,971,763,679,555.94/1,605,372.44 - Step 6: Final answer
x = 1,228,228.19
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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.